Bishnu P Pal

School of Natural Sciences

Before joining MEC Bishnu P. Pal was a Professor of Physics for over 24 years since 1990 at the Indian Institute of Technology Delhi, during which he served as the Chairperson of the Physics Department (September 2008-December 2011) and Head of the Computer Services Center (September 2003-August 2006). He had been teaching at IIT Delhi since 1979 and was deeply involved in introducing and developing the interdisciplinary M. Tech. program on Optoelectronics and Optical Communication in 1980 at IIT Delhi. This is one of the most popular IDP programs at IIT Delhi.

He has edited several books published by Elsevier/Academic Press, John Wiley, Intech, Viva publishers. He has also contributed over 15 chapters - all by invitation in several books. Prof Pal has extensively contributed to sponsored research and industrial consultancy and especially several international collaborative research projects that involved France, UK, USA, and Russia.

His current areas of research is Guided Wave Optics and Optical Communication that broadly covers application-specific specialty optical fibers like dispersion management, large mode area fibers and fibers for DWDM transmission, All-fiber components and devices as branching components for optical communication networks, Designs of new generation microstructured optical fibers for supercontinuum light, dispersion compensation, metro optical networks, and mid-infrared photonics, optical fiber sensors, guided wave components based on silicon photonics, and Anderson type localization of light in a disordered optical waveguide lattice.

Professor Pal has worked as a guest scientist at ELAB at the Norwegian University of Science and Technology (NTNU) at Trondheim in Norway as Royal Norwegian CSIR (NTNF) Fellow in mid-1970s and later as NTNF Visiting Professor in late 1980s, CNRS laboratory LPMC at University of Nice in France as Senior Foreign Scientist of CNRS for various periods, National Institute of Standards and Technology (NIST) Boulder Colorado in USA as a Fulbright Scholar, Heriot Watt University Edinburgh in UK as an Erasmus Mundus Scholar in Photonics, City U Hong Kong and University of Malay at Kuala Lumpur in Malaysia as Visiting Professor, and at Institute fur Physikalische  Messtechnik (IPM) at Freiburg in Germany as an Alexander von Humboldt Fellow. He has been a founding member of Int. J. Optoelectron. (Taylor & Francis) and is currently a Member of the Editorial Advisory Boards of the journals: J. Opt. Comm. (Germany), J. Elect. Engg. & Tech. (Korea), Optoelectron. Letts. (China), J. Korean Opt. Soc. (Korea), Photonic Sensors (Springer), J of Electromagnetic Waves and Applications (Taylor &Francis), and Kiran of the Indian Laser Society.

He has published and reported over 200 research papers and research reviews in peer reviewed international journals and conferences and has co-authored one each Indian and US patent.  Prof. Pal is a Fellow of OSA The Optical Society (USA), SPIE The International Society for Optics and Photonics (USA), Optical Society of India (OSI) and IETE (India), Honorary Foreign Member of the Royal Norwegian Academy of Sciences and Letters (DKNVS, Norway), and Senior Member of IEEE (USA). He has been a Distinguished Lecturer of IEEE Photonics Society (formerly LEOS) USA for 2005-2007 during which he had extensively travelled and lectured around the world on his research, recipient of the Homi Bhabha Award of UGC (India) for excellence in Applied Sciences for 2006, OSI (India) Life Time Achievement award (2010), Prof Y. T Thathachari Prestigious Research Award in Physical Science of Bhramara Trust Mysore for 2010, CEOT 2010 award of IETE (India) for contributions to Optoelectronic Devices in the broadest sense, Om Prakash Bhasin National award for Electronics and Information Technology 2013, Khosla National Research of IIT Roorkee for Lifetime achievements, and most recently the prestigious Esther Hoffman Beller Medal for 2016 of OSA The Optical Society (USA), and he was a co-recipient of the First Fiber Optic Person of the Year award in 1997 instituted by Lucent Technology and Voice & Data Magazine in India.

Prof. Pal was a Member of the Board of Directors (2009-2011) of OSA The Optical Society (USA), its International Council (2007-2009), and Long Term Planning Group for publications (2011-2014).

He was President of the Optical Society of India (2012–2015), Associate Vice President of IEEE Photonics Society’s Membership Council (2011-2015) and member of the International Jury for the Galileo Galilei Prize of the International Commission of Optics (2010-2014).

Contact: bishnu.pal[at]mechyd.ac.in   040-67135103

  • Ph.D. (Physics), IIT Delhi, India, 1975
  • M. Sc. (Physics), Jadavpur University, Kolkata, India, 1970
  • B. Sc. (Hons. In Physics), Jadavpur University, Kolkata, India, 1968.

Research and R&D contributions made by Prof. Bishnu Pal:

Prof Pal's research involved analysis, innovative design and realization of a diverse spectrum of application-specific specialty optical fibers and fiber amplifiers, technology development of all-fiber branching components for optical networks having potential applications in optical telecommunication, fiber optic sensors, and more recently on mid-IR photonics and THz photonics, and Anderson localization of light in disordered optical waveguides.

  • Prof Pal has contributed to analysis, design, and realization of dispersion compensating fibers (DCF) that find extensive use in any long distance optical communication system. His collaborative work with his French collaborators on this [J-L. Auguste, R. Jindal, J-M. Blondy, M. Clapeau, J. Marcou, B. Dussardier, G. Monnom, D. B. Ostrowsky, B. P. PAL, and K. Thyagarajan, -1800 ps/(nm.km) Chromatic Dispersion at 1.55 micrometer in a Dual Concentric Core Fiber, Electron. Letts., vol. 36, pp. 1689-1691 (2000)], which was the then a world record (received extensive citations over 100 times); the other related invited paper [J-L. Auguste, R. Jindal, J-M. Blondy, M. Clapeau, J. Marcou, B. Dussardier, G. Monnom, K. Thyagarajan, and B. P. PAL, Conception, Realization, and Characterization of a Dispersion Compensating Fiber, Opt. Fib. Tech. vol. 8, pp. 89-105 (2002)] has also received over 80 times citations. He is co-author of a US patent No. 6,650,812 B2, 2003 entitled Design of a small residual dispersion fiber along with a matching DCF on a related topic. Indo-French Science Council had rated his Indo-French collaborative project sponsored by IFCPAR/CEFIPRA on this topic as "Excellent".
  • His co-authored research paper entitled "Effect of refractive index dip on the zero total dispersion wavelengths in single-mode fibers" [B. P. PAL A. Kumar, and A. K. Ghatak, Electronics Letters, vol. 16, pp. 505-507, (1980)] got reprinted in the book: Progress in Optical Communication Vol. II, Ed. By PJB Clarricoats, IEE Press, Stevenage, UK (1982)]. This book contains a collection of select papers, which were considered to have contributed to the growth of Optical Communication in the early 1980s.
  • In recent times, his research involved a significant effort on the contemporary field of microstructured optical fibers (MOF). Prediction made by his team for generating supercontinuum light from a Bragg fiber kind of MOF in 2006 [B. P. PAL, S. Dasgupta, M. R. Shenoy, and A. Sysoliatin, Supercontinuum generation in a Bragg fiber: Design and Analysis, Optoelectron. Letts. vol. 2, pp. 342-344 (2006)] was demonstrated experimentally for the first time in his co-authored paper [H. T. Bookey, S. Dasgupta, N. Bezwada, B. P. PAL, A. Sysoliatin, J. McCarthy, M. Salganskii, V. Khopin, and A. K. Kar, Experimental demonstration of spectral broadening in all-solid silica Bragg fiber, Opt. Exp. vol. 17, No. 19, pp. 17130-17135 (2009)]. Super continuum light is well known to be an excellent source for carrying out optical coherence tomography (OCT) analysis of biological samples besides its potential use as a broadband source in high capacity DWDM fiber optical communication.
  • Prof Pal's team had designed an air-core dispersion compensating Bragg fiber [S. Dasgupta, B. P. PAL, and M. R. Shenoy, Design of a Dispersion Compensating Bragg Fiber with ultra- high Figure of merit, Opt. Letts., vol. 30, No. 15, pp. 1917-1919 (2005) that got reprinted in Virtual Journal of Nanoscale Sc. and Tech. of AIP, July 25, 2005 issue], was cited by US Navy as one of the three references in a Call for Projects for high power Laser Delivery. To date this paper has received over 45 times citations. He had also designed an air-core Bragg fiber for potential applications in metro optical networks with a dispersion spectrum almost identical to that of silica-based conventional fiber earlier marketed by the Company AlcaLucent (France) with added benefit of ultra-low transmission loss [B. P. PAL, S. Dasgupta, and M. R. Shenoy, Bragg Fiber Design for Transparent Metro Networks, Opt. Exp., vol. 13, pp. 621-626 (2005)]; this paper was accepted by Opt. Exp. journal within a week of its submission in January 2005.
  • Prof Pal's team had proposed introduction of a certain amount of chirp in the periodic cladding of Bragg reflection waveguides and later in Bragg fibers for bandgap engineering to widen the bandgap of such fibers and waveguides and reported it for the first time at the mega conference ICMAT in Singapore in the summer of 2007 and subsequently published [B. P. PAL, S. Ghosh, R. K. Varshney, S. Dasgupta, and A. Ghatak, Loss and dispersion tailoring in 1D photonic band gap Bragg reflection waveguides: finite chirped claddings as a design tool, Opt. Quant. Electron. vol. 39, pp. 983-993, (2007); and later extended to fibers in collaboration with a French colleague [S. Ghosh, R. K. Varshney, B. P. PAL, and G. Monnom, A Bragg-like Chirped clad all-solid microstructured optical fiber with ultra-wide bandwidth for short pulse delivery and pulse reshaping, Opt. Quant. Electron. vol. 42, pp. 1-14 (2010)].
  • An inherent gain-flattened erbium doped fiber amplifier was designed and realized by Prof Pal with his Ph.D. student and co-researchers from CGCRI Kolkata and LPMC, University of Nice France having potential applications in metro optical networks [B. Nagaraju, M. C. Paul, M. Pal, A. Pal, R. K. Varshney, B. P. PAL, S. K. Bhadra, G. Monnom, and B. Dussardier, Design and fabrication of an intrinsically gain flattened Erbium doped fiber amplifier, Opt. Commn. vol. 282, pp. 2335-2338 (2009)].
  • Prof. Pal was one of the few firsts to initiate research on fiber optic sensors in India. One of his co-authored papers on a tapered multimode fiber-based refractometer was reported as early as in 1984 [A. Kumar, T. V. B. Subrahmanyam, A. D. Sharma, K. Thyagarajan, B. P. PAL, and I. C. Goyal, A Novel Refractometer using a Tapered Optical Fiber, Electron. Lett. vol. 20, pp: 534-535 (1984)], which has until now received over 60 citations. In a relatively recent successfully concluded project sponsored by the Board of Research in Nuclear Science (BRNS) of the Bhabha Atomic Research Center (BARC), Prof. Pal's team had designed and developed an optrode for remote excitation and collection of weak fluorescence from a highly corrosive industrial/nuclear environment, which has been recognized by BARC as an indigenous important import substitution contribution.
  • Under a Technology Development Mission mode project funded by Ministry of Human Resource Development of the Govt of India in late 1990s he led the team @ IIT Delhi to develop in-house the complete technology platform for flame-fusion of fibers to realize a wide variety of fused fiber coupler-based components for optical networks [B. P. PAL, P. Roy Chaudhuri, and M. R. Shenoy, Fabrication and Modeling of Fused Biconical Tapered Fiber coupler Components, Fib. Int. Opt., vol. 22, pp. 97-118 (2003)]. It was the 3rd most cited paper from that journal during the period 2003 - 2005. Till now it has received over 55 citations. Prof Pal had also led design methodology and in-house development of the technology for experimental realization of all-fiber wavelength interleaver type mux/ demux filters for DWDM systems based on unbalanced Mach Zhender interferometers through concatenation of fused fiber couplers [N. Kumar, M. R. Shenoy, and B. P. PAL, Flattop all-fiber wavelength interleaver for DWDM transmission: Design analysis, parameter optimization, fabrication and characterization recipe, Opt. Comm. vol. 281, pp. 5156-5164 (2008)]. Subsequently he had collaborated with Prof Pak Chu's group at City U Hong Kong to extend these concepts, which led to realization of polymer-based integrated optical wavelength interleavers and comb filters [IEEE Photon. Tech. Lett. vol. 17(12), pp. 2619-2621 (2005); Opt. Comm. vol. 267 (2), pp. 373-378 (2006); Opt. Comm. vol. 282, pp. 883-886 (2008)].
  • He was Consultant-in-Charge (through FITT, IITD) for in-house fabrication and supply of a set of tailor-made side-polished half couplers to an US company "Intelligent Fiber Optic Systems", Mountain View, Calif in the year 1998 from IIT Delhi. His team's related work on realization of gain flattening wavelength filters for erbium-doped fiber amplifiers was awarded the very first Photonics 2004 endowment prize as the "Best device oriented research paper from an Indian Laboratory" during the Indian Photonics community's flagship Photonics 2006 conference held at Hyderabad. Experimental demonstration of a more advanced version of this work in terms of unaffected performance of such a filter even under add/drop of standard DWDM signal channels in a DWDM network was reported by his team [R. K. Varshney, B. Nagarazu, A. Singh, B. P. PAL, and A. K. Kar, 2007, Design and Realization of an All-Fiber Broadband Tunable Gain Equalization Filter for DWDM Signals, Opt. Exp. vol. 15, No. 21, pp. 13519-13530 (2007)].
  • More recently he proposed & experimentally demonstrated (through collaboration with collaborators from Heriot-Watt University Edinburgh in UK under an UKIERI major project sponsored to him by the British Government) ultrafast laser inscripted disordered waveguides in glass as a new platform for studying statistical nature of the fundamental phenomenon of transverse localization of light in disordered waveguide lattices (similar to Anderson localization of electronic wave function) [S. Ghosh, N. D. Psaila, R. R. Thomson, B. P. PAL, R. K. Varshney, and A. K. Kar, 2012, Ultrafast laser inscribed waveguide lattice in glass for direct observation of transverse localization of light, Appl. Phys. Letts. vol. 100, 101102-101145 (2012)] and published several other related papers.
  • Very recently he has extensively researched on a variety of chalcogenide and soft-glass based specialty optical fiber designs for realizing broadband and narrow band fiber-based light sources for Mid-IR photonics, and supercontinuum generation. His co-authored paper A. Barh, S. Ghosh, G. P. Agrawal, R. K. Varshney, I. D. Aggarwal, and B. P. PAL, Design of an efficient mid-IR light source using chalcogenide holey fibers: a numerical study, J. Opt. (IOP, UK), vol. 15 035205 (2013) was selected by the Editorial Board of that journal for inclusion in the exclusive 'Highlights of 2013' collection of articles.
  • As the Principal Investigator he has significantly contributed to a recent strategic Indian Defence Research and Development Organization (DRDO) project on polarization maintaining fiber designs for subsequent fabrication by CSIR-CGCRI Kolkata, this design and realization has been judged by DRDO's RCI Laboratory in Hyderabad as a breakthrough indigenous critical component development for their fiber optic gyro programme.
  • As the Chief Consultant for a recently concluded consultancy project, Prof Pal and his team made important contributions to the design of fibers for "Fiber to the Home (FTTH)" applications for the mega-fiber manufacturer in India Sterlite Technologies Ltd Aurangabad.
  • About his independently authored comprehensive review on "Guided wave optics on silicon: Physics, Technology, and Status", which included his own research on ARROW waveguides for the prestigious series Progress in Optics, vol. XXXII (1993), Editor Prof. Emil Wolf wrote in his preface that Prof. Pal's article is "a subject of considerable current interest and is likely to influence the design and fabrication of various optical components for future use in this field of technology". As is now well known Silicon Photonics is an intensely pursued research area including companies like Intel in USA. Prof Pal had guest edited a special issue on Guided Wave Optics on Silicon for the journal Proc. IEE (UK) Part J: Optoelectronics as early as in 1996.
  • Prof. Pal has published over 120 research papers and reviews in reputed international journals and reported over 80 papers in peer reviewed International conferences of repute; delivered over 50 invited/ plenary/keynote talks at international conferences in India and abroad; Edited 4 books; 12 invited reviews in peer reviewed international journals and monographs; 1 each US and Indian patent; 15 book chapters (all by invitation), and has been adviser of 17 successful Ph.D. theses and over 75 Masters theses at IITD.
  • He is co-inventor of the following products/processes that were developed in-house at IIT Delhi:
    1. Fiber optic liquid level controller
    2. Fiber-optic educational kit
    3. Fused Fiber Coupler process technology, and
    4. Side-polished fiber half coupler process technology.

Awards:

  • Esther Hoffman Beller Medal of OSA The Optical Society (USA) for 2016 for outstanding contributions to optical science and engineering education consisting of a silver medal, cash award and a citation. The citation read "For over thirty-five years of guided wave photonics education, including the development of graduate and continuing education teaching programs and laboratories in optoelectronics and optical communications at IITDelhi, inspiring a generation of leading academic and industrial scientists".
  • Khosla National Award of IIT Roorkee consisting of a Gold Medal, a cash award, and a citation for life time achievement, which was awarded to him at the annual Convocation of IIT Roorkee in September 2014.
  • Shri Om Prakash Bhasin biennial National Award in Science and Technology in the field of Electronics and Information Technology for 2013 for significant contributions towards designing and realizing a diverse spectrum of application-specific specialty optical fibers and photonic devices for optical telecommunication. The award consisted of a plaque, a cash award, and a Citation.
  • Elected Fellow of SPIE The International Society for Optics and Photonics (USA), which has over 17000 members spread across the globe. Since its establishment in 1955, over 1000 members have been elevated to date to the grade of Fellow.  
  • The contact nodal point for India for the UNESCO’s International Year of Light 2015 (http://www.light2015.org), which is a global initiative that will highlight to the citizens of the world the importance of light and optical technologies in their lives, for their futures, and for the development of society. He also participated at the launch and inauguration of IYL2015 at UNESCO in Paris on January 19-20, 205, in which participation was only by invitation. 
  • Prof Y. T. Thathachari Prestigious Research award in Physical Sciences for 2010 by Bhramara Trust of Mysore for significant contributions to Guided Wave Optical Science and Technology
  • IETE-CEOT award for 2010 by IETE (India) for outstanding contributions to Optoelectronics and Optical Communication devices in the broadest sense
  • The highest 'OSI Award' of the Optical Society of India (OSI) in 2010 for significant life time contribution to education and diffusion of knowledge in Optics and Photonics
  • Homi J Bhabha Award of the University Grants Commission (UGC), India for outstanding contributions in Applied Sciences for the year 2006
  • Distinguished Lecturer of IEEE/LEOS (the then Lasers and Electro-Optic Society now renamed as Photonics Society), USA for two consecutive years 2005-2007 for delivering lectures at various IEEE/LEOS chapters around the world. This award is given globally up to a maximum of 8 in a year; "this award is designed to honor excellent speakers who have made technical contributions of high quality and to enhance the technical programs of the LEOS chapters".
  • Erasmus Mundus Scholar for Photonics of European Community (July 2007-September 2007) at Heriot Watt University Edinburgh
  • Co-recipient of the very first (1997) "Fiber Optic Person of the Year" award instituted by Lucent Technology in India and the magazine Voice & Data; the citation read "for outstanding contributions on all-fiber optical components with potential applications as branching components in Optical Networks"
  • Photonics award for "Best device oriented paper originating from an Indian laboratory " instituted as endowment by the Organizing Committee of PHOTONICS 2004 for the coauthored paper (A. Singh, R. K. Varshney, B. P. PAL, and B. Nagarazu), 2006 entitled Side-polished fiber- based tunable gain flattening filter for EDFA , presented at the International Conference PHOTONICS'2006,, Hyderabad (India), December 13-16 (2006)
  • Best paper award by IEEE- Electron Devices Society (India Chapter) for the coauthored (Naveen Kumar, M. R. Shenoy, and B. P. PAL) paper "A Novel Technique for All-fiber Wavelength Interleaver/Slicer", presented at the International Conference on Optoelectronics Technology (ICOT-2004), Jalgaon (India), January 12-14 (2004)
  • Gowri Memorial Award by the Institution of Electronics and Telecommunication Engineers (IETE, India) for the paper "Fiber Optical Sensors and Instruments in Bioscience" published in the journal IETE Tech. Rev. in December'91 (coauthor: B.D. Gupta) as the Best Paper of general interest published in IETE journals in 1991
  • His independently authored book chapter "Application-specific Optical Fibers" published in his edited open access e-book "Frontiers in Guided Wave Optics and Optoelectronics", published by InTech, Vienna (2010), has been one of the most downloaded (more than 11000 times till now) book chapters according to the publisher; country wise most downloads have been from the USA) and overall download of the book has crossed 95000

Other Honors/Recognitions:

  • By invitation Honorary Distinguished Foreign Member of The Royal Norwegian Academy of Sciences and Letters (DKNVS, founded in the year 1760) with effect from January 1, 2007 under its Technology Division within the class of Natural Sciences for significant contributions to Optical Fiber Communications
  • Received twice invitation from the Nobel Prize Committee, Stockholm (Sweden) in a signed letter by the Noble Prize Selection Committee for nominating a potential Nobel Laureate in Physics for 2010 and 2013
  • Elected President of Optical Society of India (OSI) for 2012, 2013, and 2014
  • Associate Vice President of the Membership Council of IEEE Photonics Society (2011-2015)
  • Member of the Board of Directors of The Optical Society OSA USA (2009-2011) as Director-at- large
  • Member of the International Council (2007-2009) and Long Term Planning Group (LTPG) for publications of the Optical Society OSA USA (2009-2015)
  • Elected Fellow of The Optical Society OSA (USA) in 2010
  • Elevated to Senior Membership of IEEE (USA) in 2010
  • Member of the Jury for International Commission of Optics (ICO) Galileo Galilei Prize (2009- 2015)
  • 2 chapters (1 authored and the other co-authored) by B. P. PAL from his own edited book "Guided Wave Optical Components and Devices: Basics, Technology and Applications" (Academic Press, 2006) have been reprinted in the reference book entitled "The Optical Communications Reference" Eds. Casimir DeCusatis and Ivan Kaminow, Elsevier Press (2010), which according to the Editors contains a collection of select chapters from a number of authoritative sources from Academic Press's range of prestigious book titles in optical communications
  • Co-authored research paper entitled "Effect of refractive index dip on the zero total dispersion wavelengths in single-mode fibers" (B. P. PAL, A. Kumar, and A. K. Ghatak, Electronics Letters, vol. 16, pp. 505-507, 1980) got reprinted in the book: Progress in Optical Communication Vol. II, Ed. P J B Clarricoats, IEE Press, Stevenage, UK (1982). This book contains a collection of select papers, which were considered to have contributed to the growth of Optical Communication in the early 1980s
  • Invited Faculty at the ICO's International Winter College on Optics held at ICTP, Trieste (Italy), February 1998
  • Traveling Lecturer of the Optical Society OSA USA (effective 2007) and SPIE USA since 2016 on "Guided Wave Optical Components and Devices"
  • One-man Scientific Auditor (July, 2004) by invitation for the multi-million dollar "National Top Down Project on Photonics" of the Government of Malaysia and presently Member of the Advisory Board of the Center of Excellence in Photonics at University of Malaya since 2012
  • Awarded Major UKIERI collaboration project entitled "Research on Application-specific Microstructured Optical Fibers" in 2007 (2007-2012) by the British Government of total value GBP415, 000; this was one of the 6 selected projects from a total of 115 submitted major project proposals. This project has been recently show cased by the British Council as the top 10 most successful out of all the UKIERI projects - both major and standard
  • His independently authored book chapter "Application-specific Optical Fibers" published in his edited open access e-book "Frontiers in Guided Wave Optics and Optoelectronics", published by InTech, Vienna (2010), has been one of the most downloaded (more than 11500 times till now) book chapters according to the publisher; country wise most downloads have been from the USA) and overall download of the book has crossed 100000

Member, Editorial Advisory Boards of the following journals:

  • i. Journal of Optical Communication (Germany) (2010- to date)
  • ii. Journal of Electromagnetic Waves and Applications Taylor & Francis (2013 - to date)
  • iii. Journal of Korean Optical Society (Korea) (2008 - to date)
  • iv. Photonics Sensor Journal, Springer Verlag (2011- to date)
  • v. Optoelectronics Letters, Springer Verlag (2005-to date)
  • vi. Journal of Electrical Engineering & Technology (Korea) (2006-to date)
  • vii. Kiran Journal of Indian Laser Society (India) (2010 - to date)
  • viii. International J. of Optoelectronics (UK) (1988-1991)
  • ix. IETE Students Journal (1998 - 2007).

By invitation guest edited International journal Special/Feature issues:

  • Special issue devoted to Optoelectronics and Optical Communication of the journals: JIETE vol. 32, No. 4 (July-August), 1986, and IETE Tech. Rev. vol. 3, No. 8, 1986
  • Special issue devoted to Optoelectronics in India of the journal: INTERNATIONAL JOURNAL OF OPTOELECTRONICS, vol. 8, No.4 (July-August), 1993
  • Special issue devoted to Guided-Wave Optics on Silicon of the journal: PROCEEDINGS IEE Pt. J: OPTOELECTRONICS (Co-Editor R.R.A. Syms), vol. 143, No. 5 (October), 1996
  • Special issue devoted to Guided wave Optical Components and Devices of the Journal: J. OPTICS (Optical Soc. of India) (Co-Editor S.K. Bhadra), vol. 33, Nos. 3 & 4 (July-September & October-December, 2004)
  • Proc. of PHOTONICS 2008 (Co-editor A. Sharma) The International Conference on Fiber Optics and Photonics, New Delhi, Dec. 14-17, 2008, Viva Books, New Delhi
  • Feature issue on Guided Wave Optics: Physics, Technology, and Applications [Co-editors: Govind Agrawal, Anurag Sharma, and Claude Fabre] of the OSA journal: App. Opt. vol. 48, November 1st, 2009
  • Passive Components and Fiber-Based Devices VII, [Co-Editors: Perry P. Shum, John H. Marsh, and Tanya M. Monro], (Proceedings Volume) Proceedings of SPIE Volume: 7986, March 2011
  • Feature issue on Fiber optics and photonics - emerging applications [Co-editors: Satoshi Kawata, Sunil Khijawania, and H.Y. Tam] of the OSA journal: App. Opt. vol. 50, No. 25, 2011
  • Passive Components and Fiber-Based Devices VIII [Co-editors: Mable Fok, Aoxiang Lin] (Proceedings Volume), Proceedings of SPIE Volume: 8307, November 2011
  • Photonics 2010: Tenth International Conference on Fiber Optics and Photonics [Co- editors: Sunil Khijawania, Anurag Sharma, and B. D. Gupta] (Proceedings Volume) Proceedings of SPIE Volume: 8173, July 2011.
  • Chaired technical sessions at international conferences held in India, Canada, USA, Japan, and China: over 20
  • Chair/ Co-chair/ Member of the Advisory Board/Technical Program Committees of International conferences/meetings: Over 40
  • Special issue on 25 years of Erbium Doped Fiber Amplifiers and Lasers of OSI Journal J. Opt.vol. 45, No. 3, Sept (2016) published by Springer Verlagh.

Chair/Member of Research and Academic Advisory Boards:

  • Chairperson of the following Committees of Govt of India
  • National Technical Panel on All-fiber Components (1998-2001) (DIT, Govt of India) and
  • Project Review Steering Committee of the National projects on

    1. Development of Erbium-doped Fiber Technology and specialty fibers at the Central Glass and Ceramic Research Institute (CGCRI Kolkata), Ministry of Information Technology (1995-2003)
    2. Development of broadband ASE and Laser sources based on erbium doped fibers at the Indian School of Mines (Dhanbad), Ministry of Information Technology (2000-2003)
    3. Thulium-doped All-fiber MOPA at 2 micometer region for Medical Applications at the Central Glass and Ceramic Research Institute (CGCRI, Kolkata), DeitY, Ministry of Communications and Information Technology (2013 - 2016)
    4. Development of Polarization Maintaining Fibers for specific applications at the Central Glass and Ceramic Research Institute (CGCRI Kolkata), DRDO (2011-2013)
    5. Fiber Bragg grating sensor for condition monitoring of Railway Catenary-Pentograph Structure at the Central Glass and Ceramic Research Institute(CGCRI Kolkata), DeitY, Ministry of Communications and Information Technology (2013-2016)
  • Member of the PRC for the project "Development of Quantum-Well Infrared Photodetectors in wavelength range 8-14 ?m using Si/SiGe Nanotechnology at IIT Kharagpur" (2005 - 2007).
  • Member of the National Advisory Board on Instrumentation of the Department of Science and Technology, Govt. of India (2002-2005)
  • Member of the National Advisory Group on Nanotechnology of the Ministry of Information Technology (MiT), Govt. of India (2003 - 2010)
  • Member of the Research Council, Indian School of Mines (Dhanbad) (2005 - 2009)
  • Member of the Academic Council, Inter-University Nuclear Science Research Center, JNU, New Delhi (2010 - to date)
  • Member, Advisory Board of Photonics Research Center having potential to become National Center of Excellence at University of Malaya (2012- to date)

JOURNAL PUBLICATIONS

Total Research journal publications: Over 120 Journal Publications

Journal Publications since 2005:

  1. Babita Kumari, R K Varshney, and B P Pal, 2017, Design of chip scale silicon rib slot waveguide for sub-ppm detection of N2O gas at mid-IR band, Sensors and Actuators B, under review.
  2. A. Barh, R. K. Varshney, B. P. Pal, J. Sanghera, and L. B. Shaw, 2017, Thermally controlled mid-IR band-gap engineering in all-glass chalcogenide microstructured fibers: A numerical study, J. Opt. (IOP, UK) vol. 19, p. 065603 (7 pp)
  3. P. Biswas, S. Ghosh, A. Biswas, Bishnu Pal, 2017, Towards Self-similar Propagation in a Dispersion Tailored and Highly Nonlinear Segmented Bandgap Fiber at 2.8 micron, arXiV:1606.06896, 22nd June; Under review IEEE Photonics J.
  4. A. Barh, R.K. Varshney, B. P. Pal, G.P. Agrawal, and B. M. A. Rahman, 2016, Design of a polymer-based holo-core bandgap fiber for low-lossTHz transmission, IEEE Photon. Tech. Letts. vol. 28, No. 15, August 1, pp. 1703-1706.
  5. B. Kumari, A. Barh, R. K. Varshney, and Bishnu Pal, 2016, Silicon on Nitride Slot Waveguides: A Promising Platform as Mid-IR Trace Gas Sensor, Sensors and Actuators vol. B236, pp. 759-764.
  6. P. Biswas, S. Ghosh, A. Biswas, Bishnu Pal, 2016, Towards Self-similar Propagation in a Dispersion Tailored and Highly Nonlinear Segmented Bandgap Fiber at 2.8 micron,  arXiV:1606.06896, 22nd June.
  7. A. Barh, R. K. Varshney, G. P. Agrawal, B. M. A. Rahman, and  Bishnu Pal, . 2015, Plastic Fiber Design for THz generation through wavelength translation, Opt. Letts. vol. 40, pp. 2107-2110.
  8. A. Barh, S. Ghosh, R. K. Varshney, and B. P. PAL, 2014, A Tapered Chalcogenide Microstructured Optical Fiber for Mid-IR Parabolic Pulse Generation: Design and Performance Study , IEEE J. Selected Topics in Quant. Electron. (Special issue on Fiber Lasers), vol. 20, 7500507 (7 pages); also in arXiV:1311.6667.
  9. S. Ghosh, B. P. PAL, R. K. Varshney, and H. Ahmad, 2014, Transverse localization of light in 1D disordered waveguide lattices in presence of a photonic bandgap, Laser Physics vol. 24, p. 045001 (8 pages).
  10. A. Barh, S. Ghosh, R. K. Varshney, B. P. Pal, J. Sanghera, L. B. Shaw, and I. D. Aggarwal, 2014, Mid-IR fiber optic light source around 6 µm through parametric wavelength translation, Laser Physics vol. 24, p. 115401 (7 pages); also in arXiv: 1405.2493.
  11. A. Barh, S. Ghosh, R. K. Varshney, and B. P. PAL, 2013Design of an all-fiber broadband mid-IR source through wavelength translation, arXiV: 1302.1036.
  12. A. Barh, B. M. A. Rahman, R. K. Varshney, and B. P. PAL, 2013, Design and performance study of a compact SOI polarization rotator at 1.55 micrometer, IEEE/OSA J. Lightwave Tech. vol. 31, pp. 3687-3693.
  13. S. Ghosh, R. K. Varshney, and B. P. PAL, 2013, Generation of low divergent supercontinuum for mid-IR high power delivery through a large mode area photonic bandgap fiber, Laser Physics (IOP) vol. 23, pp. 095105 (4 pages); also arXiV:1208:3315).
  14. A. Barh, S. Ghosh, R. K. Varshney, and B. P. PAL, 2013, Ultra-large mode area microstructured core chalcogenide fiber design for mid-IR beam delivery, Opt. Comm. vol. 311, pp. 129-133.
  15. A. Barh, S. Ghosh, G. P. Agrawal, R. K. Varshney, I. D. Aggarwal, and B. P. PAL , 2013, Design of an efficient mid-IR light source using chalcogenide holey fibers: a numerical study, J. OPT. (IOP), vol. 15, 035205 (7pp) ; also arXiv:1205.3283.
  16. A. Barh, S. Ghosh, R. K. Varshney, and B. P. PAL, 2013, An efficient broad-band mid-wave IR fiber optic light source: Design and performance simulation, Opt. Exp. vol. 21, pp. 9547-9555.
  17. S. Ghosh, R. K. Varshney, and B. P. PAL, 2013, Anderson localization of light in presence of a weak longitudinal modulation in refractive index in 1D disordered waveguide lattices, Laser Phys. Letts. vol. 10, 085002 (4 pp); also arXiv:1210.3168.
  18. S. Ghosh, B. P. PAL, R. K. Varshney, and H. Ahmad, 2013, Role of photonic bandgap in transverse localization of light in disordered waveguide lattices, arXiv: 1204.2620.
  19. A. Barh, S. Ghosh, R. K. Varshney, and B. P. PAL, 2012Design of an efficient mid-wave IR fiber optic light source, arXiV:1208:3316.
  20. S. Ghosh, B. P. PAL, R. K. Varshney, and G.P. Agrawal, 2012, Transverse localization of light and its dependence on the phase-front curvature of the input-beam in a disordered optical waveguide lattice, J. OPT. (IOP, UK), vol. 14, pp. 075701- 075705.
  21. S. Ghosh, N. D. Psaila, R. R. Thomson, B.P. PAL, R. K. Varshney, and A. K. Kar, 2012, Ultrafast laser inscribed waveguide lattice in glass for direct observation of transverse localization of light, Appl. Phys. Letts. vol. 100, pp. 101102-101145.
  22. Prerana, M. R. Shenoy, and B. P. PAL, and B. D. Gupta, 2012, Design, analysis, and realization of a turbidity sensor based on collection of scattered light by a fiber optic probe, IEEE Sensors vol. 14 (Special Issue on Optical Fiber Sensors), pp. 40-52.
  23. H. Ahmad, M. Z. Zulkifli, F. D. Muhammad, M. H Jemangin, K. Dimyati, B. P. PAL, and S. W. Harun, 2012, Passively Q-switched 11 channels stable Brillouin erbium-doped fiber laser with graphene as the saturable absorber, IEEE Photonics J. vol. 4, pp. 2050-2056.
  24. S. J. Beeker, R. R. Thompson, B. P. PAL, and A. K. Kar, 2012, Ultrafast laser inscribed waveguide lattice in glass for direct observation of transverse localization of lightSingle stage ultrafast laser inscription of an optical waveguide evanescent field sensor, IEEE Sensors J., vol. 12, pp. 1263-1266.
  25. S. Ghosh, S. Dasgupta, F. Poletti, R. K. Varshney, B. P. PAL, and D. J. Richardson, 2011, Design of Bragg fiber with ultra-large mode area for mid-infrared applications, Opt. Exp. vol. 19, pp. 21296-21304.
  26. W. Blanc, V. Mauroy, L. Nguyen, Shivakiran Bhaktha B. N., P. Sebbah, B. P. PAL, and B. Dussardier, 2011, Rare Earth Doped Transparent Glass Ceramic Optical Fibers Prepared by Modified Chemical Vapor Deposition, J. Am. Ceramic Soc. Rapid communication) vol. 94, pp. 2315- 2318.
  27. B. P. PAL, 2011, Commentary on “Photonics in India”, Nature Photonics vol. 5, No. 8, pp. 440-446.
  28. S. Ghosh, B. P. PAL, and R. K. Varshney, 2011, Role of optical nonlinearity on transverse localization of light in a disordered one-dimensional optical waveguide lattice, Opt. Comm. vol. 275, pp. 2785-2789.
  29. Naveen Kumar, M. R. Shenoy, and B. P. PAL, 2011, Phasor notations based simple analytical method for intuitive designing of wavelength interleaver with flattop response, JIETE, vol. 57, pp. 218-225.
  30. S. Ghosh, R. K. Varshney, B. P. PAL, and G. Monnom, 2010, A Bragg-like Chirped Clad All-Solid Microstructured Optical Fiber with Ultra-wide Bandwidth for Short Pulse Delivery and Pulse Reshaping, Opt. Quant. Electron. vol. 42, pp. 1-14.
  31. S. Ghosh, G. P. Agrawal, B. P. PAL, and R. K. Varshney, 2010, Light localization in evanescently coupled disordered waveguide lattices: Dependence of the input beam profile, Opt. Comm. vol. 284 pp. 201–206.
  32. B. Nagaraju, R. K. Varshney, G. P. Agrawal, and B. P. PAL, 2010, Parabolic pulse generation in a dispersion-decreasing solid-core photonic bandgap Bragg fiber, Opt. Comm. vol. 283, pp. 2525–2528.
  33. Prerana, R. K. Varshney, B. P. PAL, and B. Nagaraju, 2010, High sensitive fiber optic temperature sensor based on a side-polished single-mode fiber coupled to a tapered multimode overlay waveguide, J. Korean Opt. Soc. vol.14, pp. 340-352.
  34. B. Nagaraju, M. C. Paul, M. Pal, A. Pal, R. K. Varshney, B. P. PAL, S. K. Bhadra, G. Monnom, and B. Dussardier, 2009, Design and fabrication of an intrinsically gain flattened Erbium doped fiber amplifier, Opt. Commn. vol. 282, pp. 2335-2338.
  35. S. K. Varshney, K. Saitoh, M. Koshiba, B. P. PAL, and R. K. Sinha, 2009, Design of S-band concentric dual core photonic crystal fibers with ASE suppression, IEEE/OSA J. Lightwave Tech. vol. 27, (Special issue on Photonic Crystal Fibers), No. 11, pp. 1725-1733.
  36. B. Nagaraju, R. K. Varshney, and B. P. PAL, 2009, A Semi-numerical approach for Modeling of Side-polished Microstructured optical fiber-based devices, App. Opt. vol. 48 (Feature issue on Guided Wave Optics), pp. G6- G11.
  37. H. T. Bookey, S. Dasgupta, N. Bezwada, B. P. PAL, A. Sysoliatin, J. McCarthy, M. Salganskii, V. Khopin, and A. K. Kar, 2009, Experimental demonstration of spectral broadening in all-solid silica Bragg fiber, Opt. Exp. vol. 17, No. 19, pp. 17130-17135.
  38. Prerana, M.R. Shenoy, and B. P. PAL, 2008, Method to determine Optical Properties of Turbid Media, Appl. Opt. vol. 47, No. 17, pp. 3216-3220.
  39. Wai Ying Chan, Kai Xin Chen, Hau Ping Chan, B. P. PAL and R. K. Varshney, 2008, A flattop PLC polymer waveguide interleaver based on folded two-stage-cascaded Y-junction Mach Zehnder interferometers, Opt. Commn. vol. 282, pp. 883-886.
  40. Naveen Kumar, M. R. Shenoy, and B. P. PAL, 2008, Flattop all-fiber wavelength interleaver for DWDM transmission: Design analysis, parameter optimization, fabrication and characterization recipe, Opt. Commn. vol. 281, pp. 5156-5164.
  41. V. Karthik, S.S. Rao, M. R. Shenoy, Prerana and B. P. PAL, 2007, Determination of Optical Properties of a Turbid Medium using Fiber Optic Transmission Experiment, Asian J. Chem. vol. 18 (5), pp. 3344-3347.
  42. S. Dasgupta, B. P. PAL, and M. R. Shenoy, 2007, Nonlinear spectral broadening in solid core Bragg fibers, IEEE J. Lightwave Tech. (Special Issue on Modeling of Guided Wave Photonic Devices), vol. 25 (No.9), pp. 2475-2484.
  43. R. K. Varshney, A. Singh, K. Pande, and B. P. PAL, 2007, Side-polished fiber-based gain-flattening filter for erbium-doped fiber amplifiers, Opt. Commn. vol. 271, pp. 441-444.
  44. S. Dasgupta, A. K. Ghatak, and B. P. PAL, 2007, Analysis of Bragg reflection waveguides with finite claddings: An accurate matrix method formulation, Opt. Commn. vol. 279, No. 1, pp. 83-88.
  45. R. K. Varshney, B. Nagarazu, A. Singh, B. P. PAL, and A. K. Kar, 2007, Design and Realization of an All-Fiber Broadband Tunable Gain Equalization Filter for DWDM Signals, Opt. Exp.  vol. 15, No. 21, pp. 13519-13530.
  46. B. P. PAL, S. Ghosh, R. K. Varshney, S. Dasgupta, and A. Ghatak, 2007, Loss and dispersion tailoring in 1D photonic band gap Bragg reflection waveguides: finite chirped claddings as a design tool, Opt. Quant. Electron. vol. 39, pp. 983-993 (Special issue on Microstructured Fibers and Waveguides).
  47. N. Kumar, M. R. Shenoy, and B. P. PAL, 2006, “An all-fiber interferometric technique for an accurate experimental estimation of the mode effective index of a single-mode fiber,” Opt. Eng. vol. 45(1), pp. 015001-4.
  48. N. Kumar, M. R. Shenoy, K. Thyagarajan, and B. P. PAL, 2006, “Graphical representation of the supermode theory of a waveguide directional coupler”, Fib. Int. Opt. vol. 25 (3), pp. 231
  49. Qiang Wu, Pak L. Chu, H. P. Chan, and B. P. PAL, 2006, “A Y-junction polymer optical waveguide interleaver,” Opt. Commn. vol. 267 (2), pp. 373-378.
  50. B. P. PAL, S. Dasgupta, M. R. Shenoy, and A. Sysoliatin, 2006, “Supercontinuum generation in a Bragg fiber: Design and Analysis,” Optoelectron. Letts. vol. 2, pp. 342-344.
  51. B. P. PAL, S. Dasgupta, and M. R. Shenoy, 2005, “Bragg Fiber Design for Transparent Metro Networks,” Opt. Exp.  vol. 13, pp. 621-626.
  52. S. Dasgupta, B. P. PAL, and M. R. Shenoy, 2005, “Design of a Dispersion Compensating Bragg Fiber with ultra-high Figure of merit,” Opt. Letts. vol. 30, No. 15, pp. 1917 1919; reprinted in Virtual Journal of Nanoscale Sc. and Tech. of AIP, July 25, 2005 issue.
  53. N. Kumar, M. R. Shenoy, and B. P. PAL, 2005, “An All-fiber Interferometric Technique for identification of the coupled and Throughput Ports of a Fused Fiber Directional Coupler,” Opt. Commn. vol. 251, pp. 301-307.
  54. M. R. Shenoy, N. Kumar, and B. P. PAL, 2005, “Novel technique to tune the free spectral range of all-fiber wavelength interleavers,” Microwave and Opt. Tech. Letts.  vol. 47(2), pp. 137-140.
  55. N. Kumar, M. R. Shenoy, and B. P. PAL, 2005, “Standard single-mode fiber-based loop mirror as a gain flattening filter,” IEEE Photon. Tech. Lett. vol. 37(10), pp. 2056-2058.
  56. Quiang Wu, Pak L. Chu, H. P. Chan, and B. P. PAL, 2005, “Polymer- based compact comb filter with flat top response,” IEEE Photon. Tech. Lett. vol. 17(12), pp. 2619-2621.

Peer Reviewed international conference PUBLICATIONS:    Over 80

International conference presentations since 2005:

  1. P. Biswas, S. N. Ghosh, R. K. Varshney, A. Biswas and Bishnu P. Pal, 2017, Parametric dependence of self-similar propagation of parabolic pulses in a dispersion oscillating fiber, 24th Congress of the International Commission of Optics (ICO-24), Tokyo, Aug. 21-25.
  2. S. N. Ghosh1*, R. K. Varshney2, and Bishnu P. Pal, 2017, Controlling light beam dynamics in ordered and disordered waveguide lattices with gain and loss, -ibid-
  3. B. Kumari, R. K. Varshney, and Bishnu Pal, 2016, Novel silicon-on-nitride rib slot waveguide for low and flat dispersion at mid-IR wavelength regime: A parametric design, International conference on Fiber optics and Photonics, PHOTONICS2016, IIT Kanpur, Dec. 5-8.
  4. B. Kumari, R. K. Varshney, and Bishnu Pal, 2016, Design of SOI rib slot waveguide with enhanced evanescent field for optical sensing, Frontiers in Optics FiO 2016, Rochester, NY, Oct. 17-21.
  5. P. Biswas, S. Ghosh, A. Biswas, and Bishnu Pal, 2016, Self-similar propagation in dispersion managed and highly non-linear segmented bandgap fiber in the mid-IR, Frontiers in Optics FiO 2016, Rochester, NY, Oct. 17-21.
  6. A. Barh, R. K. Varshney, and B. P. PAL, 2015, Terahertz guidance through hollow core plastic photonic bandgap fibers: Sensitivity to structural parameters, IEEE Workshop on Recent Advances in Photonics (WRAP2015), IISc Bangalore, Dec. 16-17.
  7. Somnath Ghosh and B. P. PAL, 2015, Strong confinement of light in ultra-small volumes via proximity resonances: Interplay between noise and Q-factor, International Conference on Optics and Photonics ICOP2015, Kolkata, Feb 20-22.
  8. A. Barh, R. K. Varshney, B. P. PAL, J. Sanghera, and L. B. Shaw, 2015, Temperature assisted band-gap engineering in all-solid chalcogenide holey fiber for mid-IR application, -ibid-.
  9. Babita Kumari, A. Barh, R. K. Varshney, and B. P. PAL, 2014, Mid-IR Evanescent Field Gas Sensor Based on Silicon-on-Nitride Slot Waveguide, - ibid-.
  10. Ajanta Barh, R. K. Varshney, B. P. Pal, G. P. Agrawal, and B. M. A. Rahman, 2014, Band-gap fiber for Efficient THz Transmission, PHOTONICS2014, IIT Kharagpur, Dec. 14-16.
  11. Ajanta Barh, R. K. Varshney, B. P. Pal, G. P. Agrawal, and B. M. A. Rahman,, 2014, Efficient Terahertz Generation in a Novel Microstructured-Core Double Clad Plastic Fiber, -ibid-.
  12. Ajanta Barh, Babita Kumari, R. K. Varshney, and B. P. Pal, 2014, SOI Slot Waveguide Based on-Chip Trace Gas Sensor in the Mid-IR, JSAP-OSA Joint Symposium, Sapporo, Hokkaido, Japan, September 17-20.
  13. Ajanta Barh, R. K. Varshney, J. Sanghera, L. B. Shaw, and B. P. PAL, 2014, Band-gap Engineering in All-Solid Low Index Contrast Photonic Band-Gap Chalcogenide Fiber DesignInternational Conference on Optoelectronics and Lasers (ICOL), Dehradun, India, March 5-8.
  14. Ajanta Barh, S. Ghosh, R. K. Varshney and B. P. PAL, 2013, Design Tailored Efficient Broad-Band Fiber Optic Light Source for Mid-IR Molecular Spectroscopy OSA's 97th Annual Meeting Frontiers in Optics (FiO2013), Orlando, FL, October 6-10.
  15. Ajanta Barh, S. Ghosh, R. K. Varshney, and B. P. PAL, 2013, Generation of temporal parabolic pulse in a tapered chalcogenide based microstructured optical fiber for the Mid-IR: Design issuesInternational conference on Materials for Advanced Technology (ICMAT’2013), SUNTEC, Singapore, June 30 - July 5.
  16. Ajanta Barh, B. M. A. Rahman, R. K. Varshney, and B. P. PAL, 2013, An Efficient polarization converter for mid-IR wavelengthOSA Conference Advanced Photonics Congress 2013: Integrated Photonics Research, Silicon, and Nano-Photonics (IPR), Puerto Rico, July 14-19.
  17. Ajanta Barh, S. Ghosh, R. K. Varshney and B. P. PAL, 2013, All-fiber broadband mid-IR source through wavelength translation: Design and simulationIEEE Photonics Society Conference 2013 (IPC2013), Bellevue Washington, USA (Seattle Metro Area), September 8-12.
  18. Ajanta Barh, S. Ghosh, R. K. Varshney and B. P. PAL, 2013, Design tailoring of microstructured fibers for all-fiber mid-IR light sources through wavelength translation ,3rd Workshop on Specialty Optical Fibers and their applications (WSOF2013), Sigtuna, Sweden, August 28-30.
  19. S. Ghosh, T. Naresh, R. K. Varshney, and B. P. PAL, 2012,  A supercontinuum source for mid-IR applications using chalcogenide microstructured optical fiberJSAP-OSA Joint Symposia (The 73rd Japan society of Applied Physics Autumn Meeting), Matsuyama, Japan, Sept. 11-14.
  20. Ajanta Barh, S. Ghosh, R. K. Varshney, and B. P. PAL, 2012, Extremely large mode-area single-moded microstructured optical fiber for Mid-IR high power delivery, -ibid-.
  21. S. Ghosh, A. Barh, G. P. Agrawal, R. K. Varshney, I. D. Aggarwal, and B. P. PAL, 2012, Design of a microstructured optical fiber for efficient generation of new wavelength in mid-IR regimeFrontiers in Optics FiO 2012, Rochester, NY, Oct. 14-18.
  22. S. Ghosh, N. Kumar, R. K. Varshney, and B. P. PAL, 2012, Generation of low divergent high power supercontinuum through a large mode area photonic bandgap fiber, Fiber Optics and Photonics 2012 (PHOTONICS 2012), IIT Madras, Chennai, Dec. 10-12.
  23. Ajanta Barh, S. Ghosh, R. K. Varshney, and B. P. PAL, 2012, Design of an efficient mid-wave IR fiber optic light source, -ibid-.
  24. S. Ghosh, R. K. Varshney, and B. P. PAL, 2012, Effect of a weak longitudinal modulation in refractive index on transverse localization of light in 1D disordered waveguide latticesPhotonics Global Conference 2012 (PGC2012), Singapore, Dec. 14-16.
  25. Ajanta Barh, B. P. PAL , R. K. Varshney, and B. M. A. Rahman, 2012, Design of a compact SOI polarization rotator for mid-IR application5th International Conference on Computers and Devices for Communication (CODEC2012), Kolkata, Dec. 17-19.
  26. M. Mehta, R. K. Varshney, and B. P. PAL, 2011, Broadband dispersion compensating microstructured optical fibers: Design issues, XXXV Optical Society of India Symposium International Conference on Contemporary Trends in Optics and Optoelectronics, Trivandrum, January 17-20.
  27. S. Ghosh, S. Dasgupta, D. J. Richardson, R. K. Varshney, and B. P. PAL, 2011, A soft glass-based large mode area Bragg fiber for high power delivery for mid-IR applications, Opt. Fib. Comm. (OFC’2011), Los Angeles, CA, March 6-10.
  28. S. Ghosh, N. D. Psaila, R. R. Thomson, B. P. PAL, R. K. Varshney, and A. K. Kar, 2011, Transverse localization of light in laser inscripted disordered coupled waveguide latticesFrontiers in Optics FiO 2011, San Jose, California, Oct. 16-20
  29. P. Dabral, M. R. Shenoy, B. P. Pal, and B. D. Gupta, 2010, Analysis and realization of a fiber-optic turbidity sensor based on measurements of scattered light, 4th European Workshop on Optical Fiber Sensors, September 7-10, Porto, Portugal.
  30. B. Nagaraju, S. Garg, R. K. Varshney, and B. P. PAL, 2010, An inherently gain flattened EDFA design based on dual-core photonic crystal fiber, International conference on MEMS & Optoelectronic Technologies, Narsapur, India, Jan. 22-23.
  31. Somnath Ghosh, B. P. PAL, R. K. Varshney, and G. P. Agrawal, 2010, Transverse Localization of Light and Effect of Nonlinearity in a Disordered Coupled Optical Waveguide Lattice, Nice Days of Waves in Complex Media (NDWCM-2010), June 7– 9, Nice, France.
  32. S. Ghosh, B. P. PAL, G. P. Agrawal, and R. K. Varshney, 2010, Role of nonlinearity and transverse localization of light in a disordered coupled optical waveguide lattice, OSA Annual conference Frontiers in Optics, Rochester, USA, October 25-28.
  33. B. Nagaraju,. S. Garg, R. K. Varshney, and B. P. PAL, 2010,  Dual-core photonic crystal fiber-based intrinsically gain-flattened EDFA, Workshop on Specialty Optical Fibers (WSOF’2010), Oxaca, Mexico, October 12-15.
  34. S. Ghosh, R. K. Varshney, and B. P. PAL, 2010, Role of Photonic bandgap and transverse localization of light in a disordered coupled optical waveguide lattice, X International Conference on Fiber Optics Photonics (PHOTONICS 2010), Guwahati, India, Dec. 12-15.
  35. S. Ghosh, R. K. Varshney, and B. P. PAL, 2010, Parabolic pulse generation with highly reduced higher order dispersion effect in a tapered chirped-clad Bragg fiber, -ibid-.
  36.  Prerana, R. K. Varshney, B. P. PAL, and B. Nagaraju, 2010, Side-polished fiber based high-sensitive temperature sensor, -ibid-.
  37. S. Ghosh, R.K. Varshney, and B. P. PAL, 2009, A Novel Bragg-like Chirped Clad Fiber: Design Issues, International conference on Materials for Advanced Technology (ICMAT’2009), Singapore, June 28- July 3.
  38. S. Ghosh, G. P. Agrawal, R. K. Varshney, and B. P. PAL, 2009, Effect of phase front curvature on transverse localization of a light beam, 14th Optoelectronics and Communication Conference (OECC’2009), Hong Kong, July 13-17.
  39. B. Nagaraju, G. P. Agrawal, R. K. Varshney, and B. P. PAL, 2009, Generation of parabolic pulse through all-solid dispersion decreasing Bragg fiber, -ibid-.
  40. B. Nagaraju, P. Jaiswal, R. K. Varshney, and B. P. PAL, 2009,  An inherently gain flattened EDFA design based on twin core fiber, International Conference on Optics and Photonics (ICOP), Chandigarh, Oct. 30-Nov. 1.
  41. Prerana, M. R. Shenoy, B. D. Gupta, and B. P. PAL, 2009, A fiber-optic turbidity sensor, International Conf on Sensors and Related Networks (SENNET’009), Vellore Inst of Tech., Vellore, Dec. 7-10.
  42. S. Ghosh, R. K. Varshney, and B. P. PAL, 2009, A Novel Bragg-like Chirped Clad Fiber: Design Issues, International conference on Materials for Advanced Technology (ICMAT’2009), Singapore, June 28- July 3.
  43. S. Ghosh, G. P. Agrawal, R. K. Varshney, and B. P. PAL, 2009, Effect of phase front curvature on transverse localization of a light beam, 14th Optoelectronics and Communication Conference (OECC’2009), Hong Kong, July 13-17.
  44. B. Nagaraju, G. P. Agrawal, R. K. Varshney, and B. P. PAL, 2009, Generation of parabolic pulse through all-solid dispersion decreasing Bragg fiber, -ibid-.
  45. B. Nagaraju, M. C. Paul, M. Pal, A. Pal, R. K. Varshney, B. P. PAL, S. K. Bhadra, G. Monnom, and B. Dussardier, 2008, Design and realization of an inherently gain flattened Erbium doped fiber amplifier, Conference on Lasers and Electrooptics (CLEO’2008), San Jose, CA, May 4-9.
  46. W.Y. Chan, K. X. Chen, H. P. Chan, R. Kumar, R. K. Varshney, and B. P. PAL, 2008, A Flat-top Pass-band Planar Optical Waveguide Interleaver Using Y- Junction Structure, Optoelectronics and Communication Conference (OECC’2008), Sydney, Australia, July 7-10.
  47. B. Nagaraju, R. K. Varshney, B. P. PAL, A. Singh, G. Monnom, B. Dussardier, 2008, Design and realization of a side-polished single-mode fiber optic high-sensitive temperature sensor, 2008, 6th International Conference on Photonics, Devices and Systems, Prague, Czech Republic, August, 27-29.
  48. H. T. Bookey, J. McCarthy, A. K. Kar, B. P. PAL, S. Dasgupta, E. Dianov, M. Likhachev, and A. A. Sysoliatin, 2008, Nonlinear spectral broadening of femto second pulses in a Bragg fiber: experimental demonstration, XI International Conference on Fiber Optics and Photonics PHOTONICS’2008, New Delhi, December 14-17.
  49. S. Ghosh, G. P. Agrawal, R. K. Varshney, B. P. PAL, 2008, Light localization in a 2D-disordered cylindrical medium for different input fields: a numerical study, -ibid-.
  50. S. Ghosh, R. K. Varshney, and B. P. PAL, 2008, Design of high-negative dispersion all-solid Bragg-like fiber for dispersion compensation through chirped cladding, -ibid-.
  51. B. Nagaraju, R. K. Varshney, and B. P. PAL, 2008, Modeling of side-polished microstructured optical fiber-based devices -ibid-.
  52. B. Nagaraju, M. C. Pal, M. Pal, A Pal, R. K. Varshney, B. P. PAL, and S. K. Bhadra, 2008, An inherently gain flattened L-band EDFA design for realization through MCVD technique, -ibid-.
  53. M. R. Shenoy, Prerana, B. P. PAL, and G. K. Bhowmick, 2008, A fiber-optic probe for telemetric measurements, -ibid-.
  54. S. K. Varshney, K. Saitoh, M. Koshiba, and B. P. PAL, 2008, Erbium-doped, bend-insensitive, S-band photonic crystal fiber amplifiers, -ibid- (Post-deadline paper).
  55. Sonali Dasgupta, Somnath Ghosh, R. K. Varshney, B. P. PAL, and A. K. Ghatak, 2007, Analysis of Chirped Bragg Reflection Waveguides with a finite cladding, International Conf. on Advanced Materials and Technology (ICMAT’07) held at Singapore, July 1-6.
  56. M. R. Shenoy, Prerana, and B. P. PAL, 2007, A novel technique for determination of optical properties of a turbid medium, OSA Conference Frontiers in Optics 2007, held at San Jose, Oct. 16-20.
  57. M. R. Shenoy, S. K. Pandit, Prerana, and B. P.  PAL, 2007, A novel method to determine optical scattering properties of a liquid through a fiber optic probe in conjunction with a reflector, Japan-Indo Workshop on Microwaves, Photonics, and Communication Systems at Ito Campus of Kyushu University, Fukuoka, Japan on July 6.
  58. Prerana, V. Karthik, M. R. Shenoy, and B. P. PAL, 2006, “Optical Properties of a Homogenous Mixture of Two Turbid Media,” 8th International conference on Optoelectronics, Fiber Optics, and Photonics (PHOTONICS’2006), Hyderabad, December 13-16.
  59. Sonali Dasgupta, A. Ghatak, and B. P. PAL, 2006, Analysis of Bragg reflection waveguides with finite cladding, -ibid-.
  60. A. Singh, R. K. Varshney, Kamna Pandey, B. P. PAL, and B. Nagarazu, 2006, Side-polished fiber based tunable gain flattening filter for EDFA, -ibid-.
  61. N. Kumar, M. R. Shenoy, and B. P. PAL, 2006, Design and fabrication recipe for realizing an all-fiber wavelength interleaver with flattop response: A new approach, -ibid.
  62.  N. Kumar, M. R. Shenoy, and B. P. PAL, 2005, Novel design and fabrication recipe for realizing flat-top all-fiber wavelength interleaver, Post-deadline paper, Conference on Advance Optoelectronics and Lasers (CAOL’2005), Yalta (UKRAINE), September 12-17.
  63. Sharad Nigam, B. P. PAL, M. R. Shenoy, 2005, Fiber optic probe for near field microscopy and nanophotonics: A new hybrid fabrication technique, International Conf. on Optoelectronics and Lasers (ICOL’2005), Dehradun (INDIA), Dec. 12-15.
  64. Prerana, Shilpi Goyal, M. R. Shenoy, B. D. Gupta, B. P. PAL and G. K. Bhowmick, 2005, Design and Fabrication of Fiber Optic Probe for Analyzing Reflected and Scattered Light from Liquids, –ibid-.
  65. S. Dasgupta, B. P. PAL, M. R. Shenoy, and A. Sysoliatin, 2005, “Dispersion-decreasing Bragg fiber for supercontinuum generation,” –ibid-.
  66. N. Kumar, M. R. Shenoy, and B. P. PAL, 2005, All-fiber Fourier interleave filter with box-like spectral response, -ibid-.

Reviews in Journals:

  1. A. Barh, B. P. PAL, G. P. Agrawal, R. K. Varshney, and B. M. A. Rahman, 2016, Specialty Fibers for Terahertz generation and Transmission: A Review (Invited), IEEE J. Selected Topics in Quant. Electron. Vol. 22, No. 2 (Special issue on Optical Waveguide Technology and Applications), 8500215, 15 pages.
  2. B. P. PAL, 2014, Optical Fiber Sensors: A Versatile Technology Platform for Sensing (Invited), J. Indian Institute of Science (Special issue on Fiber Optic Sensors), Vol. 94, No. 3,  pp. 283-309.
  3. K. Thyagarajan and B. P.  PAL, 2007, Modelling dispersion in optical fibers: applications to dispersion tailoring and dispersion compensation (Invited), J. Opt. Fib. Comm. Reports, Ed. Siddharth Ramachandran, Springer-Verlag, Berlin, Vol. 4, pp. 173–213.
  4. B. P. PAL, 2002, Progress in Fiber Optics: A 30-Year Retrospective (Invited), Oyo Kogaku (Applied Optics in Japanese), Vol. 2, No. 10, pp. 1-8.
  5. J-L. Auguste, R. Jindal, J-M. Blondy, M. Clapeau, J. Marcou, B. Dussardier, G. Monnom, K. Thyagarajan, and B. P. PAL, 2002, Conception, Realization, and Characterization of a Dispersion Compensating Fiber (Invited), Opt. Fib. Tech. Vol. 8, pp. 89-105.
  6. B. P. PAL and G.R. Chakravarty, 1998, All-fiber Guided Wave Components: A State-of-the-Art Review (Invited), J. Advanced Sc. (Japan), Vol. 10, No. 1, Special Issue on Fiber Optics, No. 1, pp. 1-39.
  7. B. P. PAL, 1993, Guided-wave Optics on Silicon: Physics, Technology, and Status, Progress in Optics (Ed. Emil Wolf), Elsevier North-Holland, Amsterdam, Vol. 32, pp. 1-59.
  8. B. D. Gupta and B. P. PAL, 1991, Fiber Optical Sensors and Instruments for Bio-Science, IETE Tech. Rev. Vol. 8, pp. 319 - 332; (awarded Gowri Memorial Award by IETE as the best paper of general interest published in IETE Journals in 1991).
  9. B. P. PAL, K. Thyagarajan, and A. Kumar, 1988, Characterization of Optical Fibers for Telecommunication and Sensors Part I: Multimode Fibers, International J. Optoelectron. Vol. 3, pp. 45 -71.
  10. K. Thyagarajan, B. P. PAL, and A. Kumar, 1988, Characterization of Optical Fibers for Telecommunication and Sensors Part II: Single-mode Fibers, International J. Optoelectron. Vol. 3, pp. 153 - 175.
  11. B. P. PAL, 1986, Fundamental Characteristics of Telecommunication Optical Fibers: A Review, IETE Tech. Rev. Vol. 4, pp. 347 - 372.
  12. B. P. PAL, 1979, Optical Communication Fiber Waveguide Fabrication: A Review, Fiber and Integrated Optics (USA), Vol. 2, pp. 195 -252.

 

Book chapters:

  1. B. P. PAL and Parama Pal, 2016, Fiber Optic Sensors in the book LIGHT AND ITS MANY WONDERS, Eds. A. Ghatak, A. Pathak, and V. P. Sharma, Viva Books, New Delhi, pp. 284-307. This book was sponsored by National Academy of Science India (NASI) for celebrating International Year of Light and Light-based Technologies IYL2015.
  2. B. P. PAL, 2014, Optical Waveguide Sensors in the book HANDBOOK OF OPTICAL SENSORS, Ed. José Luis Santos and F. Farahi, Taylor and Francis/CRC Press, Boca Raton, USA, pp. 37-78.          
  3. B. P. PAL, 2013, Evolution of Specialty Optical Fibers in the book "GUIDED WAVE OPTICS AND PHOTONICS", Eds. S. K. Bhadra and A. K. Ghatak, Taylor and Francis/CRC Press, Boca Raton, USA, pp. 35-64. 
  4. B. P. PAL, 2011, Materials for Optical Waveguides in the book "OPTICAL MATERIALS AND APPLICATIONS", Ed. M. Wakaki, under the series Optical Science and Engineering (Ed. B. J. Thompson), CRC Press, Boca Raton, USA, pp. 167-197. 
  5. B. P. PAL, 2010, Application-specific Specialty Optical Fibers in the book "FRONTIERS IN GUIDED WAVE OPTICS AND OPTOELECTRONICS", under the series Advanced Electrooptics and Lasers, Intech Publishers, Vienna. 
  6. B. P. PAL, 2004,Tailoring Optical Fiber Designs for Communication, in the book: “GUIDED WAVE OPTICS”, Ed. Anurag Sharma, Viva Books, New Delhi, pp. 1-36.
  7. M. R. Shenoy and B. P. PAL, 2004, Fused Fiber Coupler-based Components for Optical Fiber Communication, -ibid-, pp. 128-146.
  8. B. P. PAL, M. R. Shenoy, P. Roy Chaudhury, and Naveen Kumar, 2003, Fused Fiber Coupler Technology: A Versatile Platform for Fabrication of All-fiber Components in the book: “RECENT TRENDS IN ENGINEERING OPTICS”, Eds. K. Singh and V. K. Rastogi, Anita Publishers, New Delhi.
  9. A. K. Ghatak and B. P. PAL, 2002, Progress in Fiber Optics for Telecommunication in the International Commission of Optics (ICO) review book series “TRENDS IN APPLIED OPTICS,” Ed. A. Guenther, SPIE, Washington, pp. 359-388.
  10. B. P. PAL, 2000, All-fiber Components in the book: “ELECTROMAGNETIC FIELDS IN UNCONVENTIONAL STRUCTURES AND MATERIALS”, Eds. A. Lakhtakia and O. N. Singh, John Wiley, New York, September 2000, pp. 359-432.
  11. B. P. PAL, 1995, Fiber Optic Sensors and In-line Components in the book: "OPTOELECTRONICS: RECENT PROGRESS", Eds. A. Selvarajan and K. Shenai, IETE Press Book, Tata Mcgraw Hill, New Delhi, pp. 219 - 243.
  12. B. P. PAL, 1995, Optical Fibers: Design Issues in the book: "TRENDS IN FIBER OPTICS AND OPTICAL COMMUNICATIONS", Eds. A.K. Ghatak, B. Culshaw, V. Nagarajan, and B.D. Khurana, Viva Publishers, New Delhi, pp. 64 - 78.
  13. B. P. PAL, 1995, Optical Transmission: Fiber Optics, in the book: "PERSPECTIVE IN OPTOELECTRONICS", Ed. S. S. Jha, World Scientific Publishers, pp. 189 – 298 (design of the cover jacket was based on a figure from this chapter).
  14. B. P. PAL, 1992, Optical Fiber Sensors: Principles and Applications, in the book: "Reviews in Contemporary Physics: LASER OPTICS", Eds. R. Kamal, K.P. Maheswari, and R.L. Sawhney, Wiley Eastern, New Delhi, pp. 140 - 171.
  15. B. P. PAL, 1987, Chapter 1 Propagation Effects in Optical Fibers, in the book: "FIBER OPTICS AND INSTRUMENTATION" (in Russian), Ed. M. M. Butoussov, Mashinostroenie Publication House, Leningrad, pp. 18 - 80.

BOOKS AUTHORED/EDITED

  1. B. P. PAL (Ed.), 1992, FUNDAMENTALS OF FIBRE OPTICS IN TELECOMMUNICATION AND SENSOR SYSTEMS, John Wiley, New York and Wiley Eastern, New Delhi, pp. 778 (authored/coauthored 8 chapters out of a total of 29 chapters, most of which were contributed by experts from USA and Europe). Reprinted (Paper back) in 1994, 1997, 2000, 2005, 2007, 2010.
  2. B. P. PAL (Ed.), GUIDED WAVE OPTICAL COMPONENTS AND DEVICES: Basics, Technology, and Applications, Academic Press/Elsevier, Burlington (2006), pp. 445 (authored/co-authored 3 chapters out of 26 chapters).
  3. M. R. Shenoy, S. K. Khijawania, A. Ghatak, and B. P. PAL (Eds.), 2009, FIBER OPTICS THROUGH EXPERIMENTS, Viva Books, New Delhi; (authored/coauthored 4 chapters out of a total of 23 chapters; this book describes a large number of experiments to characterize an optical fiber, which should help in elucidating its underlying Physics required for its applications in telecommunication and sensor systems).
  4. B. P. PAL (Ed), 2010, FRONTIERS IN GUIDED WAVE OPTICS AND OPTOELECTRONICS, Free access e-book, Intech Publishers, Vienna.

PLENARY & INVITED TALKS AT INTERNATIONAL CONFERENCES / WORKSHOPS / INTERNATIONAL FORUMS

International conferences / workshops:

  1. Application-specific Specialty Microstructured Optical Fibers for Mid_IR and THz Photonics, 2016, Plenary, International Conf. on Fiber Optics and Photonics PHOTONICS2016, IIT Kanpur, Dec. 5-8.
  2. The International Year of Light 2015 and Light-based Technologies – An Introspection, 2015, Keynote address, IEEE International Conference on Telecommunication and Photonics (ICTP2015), Bangladesh University of Engineering and Technology (BUET), Dhaka, Bangladesh, Dec 26-28.
  3. All-fiber THz Generation and Transmission, 2015, UKIERI Trilateral Project Workshop on Science and Technology of THz Radiation, IIT Delhi, Dec 21.
  4. About IYL 2015 and Few Emerging Light-based Technologies, 2015, IEEE Workshop on Recent Advances in Photonics (WRAP2015), IISc, Bangalore, Dec 16-17.
  5. Designs of Application-specific Microstructured Optical Fibers for Mid-IR Photonics, International Workshop on Emerging Areas in Photonics and Future Applications (IWEPFA-2015), 2015, CGCRI, Kolkata, Dec 7-12.
  6. Specialty Optical Fibers for mid-IR Photonics, IEMOPTRONIX-2014, Kolkata, Dec 17-18.
  7. Confinement of Light in Disordered Photonic Lattices: A new Platform for Waveguidance, 2014, International Conf. on Photonics and Fiber Optics PHOTONICS2014, IIT Kharagpur, Dec. 14-16.
  8. Specialty Optical Fibers and All-fiber Devices for Mid-IR Photonics, 2014, Australian Institute of Physics Congress Canberra, Australia, Dec 7-11.
  9. Application-specific Specialty Optical Fibers , 2014, URSIGASS 2014 XXXI General Assembly and Scientific Symposium of the International Union of Radio Science (Union Radio Scientifique Internationale), Beijing, China, August 17-23.
  10. Microstructured Specialty Optical Fiber and Component Designs for Mid-IR Photonics, 2014, Photonics Summit 2014 - A Satellite event under Euroscience Open Forum (ESOF), Technical University of Denmark, Kgs. Lyngby, Denmark, June 19-20.
  11. Specialty Optical Fiber-based All-fiber Sources for Mid-IR Photonics, 2014, International Conference on Optoelectronics and Lasers (ICOL), Dehradun, India, March 5-8.
  12. Microstuructured All-Fiber Mid-IR Light Source: Design Steps and Performance Simulation, 2014, Indo-UK Seminar on Computational Photonics, IIT Delhi, India, March 1-3.
  13. Specialty Optical Fibers for Mid-IR Photonics, 2014, OPTO SPIE PHOTONICS WEST 2014 Conference, San Francisco, USA, February 2-7.
  14. Specialty Optical Fiber Designs for All-fiber Sources and High Power Transmission in the Mid- IR Wavelengths, 2013, IEEE Conference on Photonics (ICP2013), Melaka, Malaysia, October 28-30.
  15. Application-specific Specialty Optical Fibers: A New Platform for Challenging Fiber Designs, 2013, OPTO SPIE PHOTONICS WEST 2013 Conference OE128 Optical Metro Networks and Short-Haul Systems V, San Francisco, February 2-7.
  16. Application-specific microstructured specialty optical fibers: An emerging platform for exotic fiber designs, 2012, 5th International conference on Computers and Devices for Communication (CODEC 2012), Kolkata, Dec. 17-19.
  17. Anderson type transverse localization of light in disordered optical waveguide arrays, 2012, Atomic, Molecular and Optical Physics Conference (AMOP 2012), IISER, Kolkata, Dec. 14-17.
  18. Microstructured optical fibers: An emerging fiber optics platform for application-specific specialty fiber designs, 2012, Photonics Global Conference (PGC 2012), Singapore, Dec. 14- 16.
  19. Microstructured Optical Fibers: Newest opportunity for fiber designers to realize a myriad of tailored application-specific optical fibers, 2012, International Conf on Fiber Optics and Photonics (PHOTONICS 2012), IIT Madras, Dec. 12-15.
  20. Laser and Photonics: History, Status, opportunities, and exotic applications, 2012, Seminar on Laser Basics, Laser World of Photonics India 2012, Mumbai, September 14-16.
  21. Transverse localization of light: A new platform to study wave phenomenon in disordered optical media and potential applications, 2011, International conference on Trends in Optics and Photonics (ICONTOP 2011), Kolkata, December 7-9.
  22. Application-specific specialty fibers: Bragg and chirped Bragg like photonic bandgap fibers, 2011, International conference on Lasers and Material Science (ICLMSC-2011), Burdwan University, India, December 7-9.
  23. Ultra-fast laser inscripted glass waveguide lattices: A new platform for research on transverse localization of light in disordered dielectric, 2011, International Conference on Glass and Fiber Optics (ICGF), August 4-6.
  24. Dispersion-tailored optical fibers for specialty applications: Design and certain fabrication issues, 2011, 7th International Workshop on Fiber Optics and Passive Components WFOPC 2011, Montreal, Canada, July 13-15.
  25. Evolution of Specialty Optical Fibers and Fiber-based Components, 2011, Plenary Talk, XXXV Optical Society of India Symposium International Conference on Contemporary Trends in Optics and Optoelectronics, Trivandrum, January 17-20.
  26. Bragg and Bragg-like fibers: A versatile platform for all-fiber photonic bandgap devices, 2010, International Conf on Fiber Optics and Photonics (PHOTONICS2010), IIT Guwahati, Dec. 12-15.
  27. Specialty fibers: newest paradigm for fiber designers, 2009, 12th International Symposium on Microwave and Optical Technology (ISMOT-2009), New Delhi, December 16-19.
  28. Microstructured fibers: newest platform for application-specific fiber optic components and sensors, 2009, Keynote address, International conf on Optical Fiber Sensors and Sensor Networks (SENNET-2009), Vellore, Dec. 8-10.
  29. Chirped Clad Bragg-like optical fibers and waveguides: A new tool to achieve tailored functionality, 2009, International Conference on Optics and Photonics (ICOP), Chandigarh, Oct. 30-Nov. 1.
  30. Microstructured Fibers: Newest Challenge to Fiber Designers, 2009, 20th International Conference on Optical Fiber Sensors (OFS-20), Edinburgh, UK during October 5-9.
  31. Special Fibers: Newest Challenge to Fiber Designers, Plenary talk at the conference Photonics North 2008, Montreal, Canada, June 2-4, 2008.
  32. Microstructured Optical Fibers: An Emerging Technology and its Potentials", Annual Benelux LEOS chapter Workshop, Technical University of Eindhoven, Netherlands, May 25, 2007.
  33. Nonlinear Pulse Propagation in Photonic Bandgap Bragg Fibers, International Conference on Optoelectronics, Fiber Optics and Photonics (PHOTONICS' 2006), Hyderabad, December 13- 16, 2006.
  34. Photonic bandgap Bragg fibers: a new platform for realizing application-specific specialty optical fibers and components, Plenary talk at the Annual Conference of the Korean Optical Society at Seoul (Korea), February 9-10 (2006).
  35. Design and Realization of Fused Fiber Coupler-based All-Fiber Wavelength Selective Devices for DWDM Optical Networks, International Conference on `Electronic and Photonic Materials, Devices and Systems (EPMDS), Kolkata, January 4-6 (2006).
  36. Photonic Bandgap Bragg Fiber: a Novel Microstructured Optical Transmission Medium , International Conference on MEMS and Semiconductor Nanotechnology (memsNano 2005), December 20-22 (2005).
  37. Bragg Fibers: a new Platform for Realizing Application-specific Specialty Fibers and Components, IEEE/LEOS Distinguished Lecture, ICOL'2005 International Conference on Lasers and Optoelectronics at Dehradun (INDIA) December 12-15, 2005.
  38. Photonic Bandgap Bragg Fiber: A Novel Dispersion Tailored Optical Transmission Medium, 2005, International Conference on Advanced Optoelectronics and Lasers (CAOL), Yalta (Ukraine), September 12-17.
  39. In-fiber Gratings as a versatile Technology Platform for DWDM Components and Sensors, 2005, Indo-Norwegian W'shop on Fiber Bragg Grating Sensors and Their Applications, CGCRI, Kolkata, Apr. 6.
  40. DWDM Components, at the International Conference PHOTONICS'2004 held at Kochi during December 8-11, 2004.
  41. Fiber Optic Sensors and Components at the International Conference on Optoelectronics, Fiber Optics and Photonics (PHOTONICS' 2002), TIFR, Mumbai, December 16-18, 2002.
  42. Fiber Optic Sensors and Components, 3-hour Short Course held at IIT Bombay prior to the International Conference on Optoelectronics, Fiber Optics and Photonics (PHOTONICS' 2002), December 14, 2002.
  43. Broadband Dispersion Compensating Fibers for DWDM Transmission at the Optoelectronics and Communication (OECC'2002) International Conference, Yokahama, Japan, July 8-12, 2002.
  44. R&D Trends and Advances in Photonics: A Critical Enabling Technology behind IT Revolution as the Lead talk at the 89th National Science Congress, Lucknow, January 3-7, 2002.
  45. Managing Dispersion in Broadband DWDM links at the International conference on Broadband Optical Fiber Communication Technology (BBOFCT 2001), Jalgaon (India), December 4-7, 2001.
  46. All-Fiber Components for DWDM Transmission, International Conference on Fiber Optics and Photonics (PHOTONICS' 2000), Calcutta, December 18-20, 2000.
  47. A course of three lectures as a Lecturer on Guided Wave Optics on Silicon: Physics and Technology at the International College on Optics held at Abdus Salam Centre for Theoretical Physics (ICTP), Trieste, Italy held during February 9-27, 1998.
  48. Progress on Fiber Optics and Optical Communications to date: a Retrospective as a Special Conference paper, ibid, 1998.
  49. High Silica Optical Fibers and Trends in Lightwave Communications: A Twenty Five Year Retrospective, International Conference on Fiber Optics and Photonics (PHOTONICS'96) held at IIT Madras, December 9-13, 1996.
  50. All Fiber Components: Tutorial, ibid, IIT Madras, December 10, 1996.
  51. Lightwave Communication Systems in India: Status and Prospects at the special Symposium on Evolution of Optical Communication Networks in the Asia-Pacific Region held during the Optoelectronics and Optical Communication Conference (OECC'96) at the Nippon Convention Center, Makuhari Messe, Chiba, Japan, July 16-19, 1996.
  52. Fiber Optic Sensors and In-line Components at the International Conference on Emerging Optoelectronic Technologies (CEOT'94) held at IISc, Bangalore during July 18-22 (1994).
  53. A course of 3 lectures on Fiber Optic Sensors and Components at the International Workshop on Science and Technology of Optical Fiber Sensors held at IIT Madras during March 25-27 (1993).
  54. Fiber and Integrated Optical Components in Optical Communication at the WISITEX'92 World Congress on Science and Instrumentation Technology held at Pragati Maidan, New Delhi on February 8 (1992).
  55. Characterization of Telecommunication Grade Optical Fibers: A Review at the International Conference on Microelectronics & Fiber Optics (ICMEF'85) held at CSIO, Chandigarh, Nov. 5- 8 (1985).
  56. A course on Optical Waveguides at the inaugural Plenary Session of the International Symposium on Optical Waveguide Sciences, Kweilin, China, June 20 24 (1983). b) Interdisciplinary nature of the discipline: Optical Waveguides, Panel session on Education in Optical Waveguide Sciences at the same symposium at Kweilin, China, June 1983. The summary of the Panel deliberations has appeared in print in App. Scientific Research 41, 1984, 369-380 and reprinted in IETE Tech. Rev. 3, 1986, pp. 449 454.

International Forums:

  1. Photonic Bandgap Specialty Optical Fiber Devices and Applicability to Bragg Reflection Semiconductor Waveguides, 2014, IEEE Nanotechnology Council ACT Chapter IEEE Photonics Society and Electron Devices Society ACT Chapter & EME Seminar Research School of Physics and Engineering, Australian National University, Canberra (Australia), Dec 9.
  2. Anderson type localization of light in a disordered 1D waveguide array, 2012, Photonics Research Center, University of Malaya, Kuala Lumpur (Malaysia), June 15.
  3. Chirped Bragg fibers: A New Paradigm for tailoring Loss and Dispersion in Photonic Bandgap Fibers, 2010, LPMC, University of Nice, France, June 26.
  4. Microstructured Optical Fibers and Waveguides: Some Recent Research Results, 2008, University of Connecticut, Storrs, USA, 25th April.
  5. Progress in optical fibers from classical to microstructure: A perspective, 2007, LPMC, University of Nice, France, on 28th September.
  6. Propagation in optical fibers and ii) All-fiber components, 2007, Erasmus Mundas Summer School on Photonics, St. Andrews University, Scotland, June-July.
  7. Recent research on Bragg Fibers and all-fiber components, 2006, Seoul National University, Korea on 8th February.
  8. IEEE/LEOS Distinguished Lecture: Photonic bandgap Bragg fibers: a new platform for realizing application-specific specialty optical fibers and components at i) LEOS chapter, Kolkata on January 2, 2006, ii) NTU, Singapore on February 6, 2006, iii) Plenary talk at Korean Optical Society’s Annual conference on February 9, 2006, iv) College Park, University of Maryland on June 5, 2006, v) Old Dominion University, Norfolk on June 6, 2006, vi) Corning Inc. on June 8, 2006, vii) CREOL, Orlando, Fl on June 14, 2006, viii) National Research Council, Ottawa on June 22, 2006, ix) University of Toronto on June 29, 2006, x) Benelux LEOS Student chapter, Eindhoven, Netherlands, May 25, 2007, xi) City University of London on June 26, 2007, and xii) Scottish LEOS chapter at Heriot Watt University on July 1, 2007.
  9. Specialty Fibers and All-fiber Components: some recent Results, 2005, Fiber Optic Research Center (FORC), General Physics Institute, Russian Academy of Sciences, Moscow on September 8.
  10. All-fiber Components and Specialty Fibers: Some Recent Research Results, 2004, Institute of Optics, University of Rochester, N.Y., USA on October 18.
  11. Advances in Fiber Optics Part I: Evolution and Current Status of Transmission and Specialty Optical Fibers, and Part-II Guided Wave Optical Components, 2004, A course of two lectures at the National Workshop on Photonics, AMREC, SIRIM, Berhad (Malaysia) on July 21.
  12. Fiber Optics and Optical Communication: Recent Advances and Trends, 2003, Institute of Optical Science and Technology (OSAT), Department of Information Engg and Electronic Engg., Chinese Univ. of Hong Kong, July 24.
  13. Guided Wave Optical Components and Devices, 2003, Optoelectronics Research Center, City University of Hong Kong, July 7.
  14. – ibid-, 2003, Advanced Technology Research Center, Shenzhen University (China), on July 16.
  15. Dispersion Tailored Fibers and FBT Fiber Coupler Components in the context of DWDM Transmission,2002, Optoelectronics Research Center, City University of Hong Kong, July 17.
  16. Trends in Fiber Optics and Optical Communication, 2002, Tokai University, Shonan Campus, Department of Electro-Photo Optics Engineering, Japan on July12.
  17. Recent Work on FBT Fiber Coupler Components and Dispersion Compensating Fibers, 2001, at the CNRS Lab. LPMC, University of Nice, France on June14.
  18. -ibid- , 2001, at the CNRS Lab. IRCOM, University of Limoges, France on June 22.
  19. Fiber Optic Sensors and Fiber Components, 1996, at the Institute of Physical and Chemical Research (RIKEN), Wako-shi, Saitama, Japan on July 12.
  20. In-Line Fiber Components for Optical Communication, 1996, NTT’s Laboratory for Optoelectronic Components, Ibaraki-Tokai, Japan on July 9.
  21. Guided Wave Optical Components and Devices, 1996, at Tokai University, Shonan Campus, Department of Electro-Photo Optics Engineering, Japan on July 3.
  22. Guided Wave Optical Components on Silicon, 1996, at Optoelectronics Research Center of The National University of Singapore, Singapore on June 27.
  23. Guided Wave Optical Components on Silicon, 1991, at the Central Research Laboratory of Thomson CSF, Orsay, France on August 23.
  24. Silicon?based Guided Wave Optics, 1991, at the Institute of Optics, University of Rochester, N.Y., USA on August 12.
  25. Silicon?based Integrated Optics, 1991, at the University of Florida, Gainesville, Florida, USA on May 24 (1991).
  26. Review on Optical Communications Research and Advanced Single?mode Fiber Studies, 1989, AT&T Bellcore, Red Bank, NJ, USA, June 12.
  27. Design and Device Applications of Optical Fibers, 1989, at the Institute of Optics, University of Rochester, NY, USA on June 9.
  28. Optical Waveguides, 1989, at the Electrical Engineering Dept. of the Arizona State University, Tempe, Az., USA on June 1.
  29. Lightwave Metrology at IIT Delhi, 1989, at the National Bureau of Standards, Boulder, CO., USA on May 31.
  30. Recent Advances in Optical Fiber Sensors, 1989, at the Institut fur Stromungsmechanik (Fluid Mechanics), Alexander Friedrich Universitat, Erlangen?Nurnberg, West Germany on May 25.
  31. Transmission Characteristics of Matched?clad Single? mode Fibers: Role of Effective Cut?off Wavelength, 1988, at the company Optoplan a.s., Trondheim, Norway on June 7.
  32. Recent Development in Fiber Optics, 1988, in Physics Department, Kuwait University, Kuwait on May 4.
  33. Optical Fiber Metrology and Sensors, 1987, i) University of Strathclyde, Glasgow (UK) on June 11; ii) University College, London on June 25 and iii) Fraunhofer Institut fur Physikalische Messtechnik (IPM), Freiburg (W. Germany) on June 30.
  34. Two talks entitled i) Characterization of Single?mode Fibers of Arbitrary Profile and ii) Multimode Fiber Optic Refractometer, 1983, Electrical Engineering Department of the Helsinki University of Technology, Espoo (Finland) on May 27.
  • Organized a three day Indo-French Workshop at MEC in April 2015 on "Digital Manufacturing and Prototyping" as the Coordinator (Co-Coordinator: Prof T S Krishnamurthy) from India sponsored by Indo-French Center for Advanced Research (IFCPAR/CEFIPRA), New Delhi under its Industry-Academia program
  • Professor at IIT Delhi, Physics Department, 1990-2014
  • Head of the Physics Department at IIT Delhi, 2008-11
  • Head of the Centre at IIT Delhi, Computer services centre, 2003-06
  • Consultant-in-charge for technical solutions on certain application-specific specialty fiber designs (2012) for fiber to the home (FTTH) of Sterlite Technologies Ltd., Aurangabad (India)
  • Visiting Professor, Photonics Research Center at University of Malaya, Kuala Lumpur, 2012
  • Senior Foreign Researcher of CNRS, Laboratoire Physique de la Matiere Condensee (LPMC) of CNRS), Sophia Antipolis, University of Nice (France), 2007 (Sabbatical leave); 2010-11
  • Consultant-in-charge for technical opinion about Photochrom glass blanks for Corning Inc. (2009)
  • Erasmus Mundus Scholar in Photonics (European Union), Applied Physics Dept., Heriot Watt University, Edinburgh, UK, 2007 (Sabbatical leave)
  • Academic Visitor, Electronic & Electrical Engg Dept, University of Strathclyde, Glasgow,UK, 2004
  • Visiting Professor, Optoelectronics Research Center, City University of Hong Kong, Summers of 2002 and 2003
  • Consultant to Siemens India for offering technical opinion on SDH vis-à-vis PDH transmission (1999) with regard to a potential Siemens business involving Indian Rupees 500 million
  • Consultant to Lucent Technology Finolex (India) for technical opinion on utility of Optical Fiber Cable Filling Compound Type-B used in central core fiber cables (1999)
  • Consultant-in-charge for fabrication and supply of customized fiber half-couplers to the US company: Intelligent Fiber Optic Systems (Mountain View, California) (1998)
  • Fulbright Scholar, National Institute of Standards and Technology (NIST), Boulder, CO (USA), 1990 (Sabbatical Year)
  • Visiting Professor of Royal Norwegian CSIR, Norwegian Institute of Technology, Trondheim (Norway), Physical Electronics Division, summer of 1988
  • Alexander von Humboldt Fellow of AVH Foundation, Fraunhofer Institute for Physikalische Messtechnik (IPM), Germany, 1982-83
  • Assistant Professor at IIT Delhi, Physics Department, 1981-90
  • Senior Scientific Officer Grade I initially under a DST-sponsored project on Optical Fibers at IITD and then on a regular institute cadre under "Laser Applications Program" of IITD at IIT Delhi, 1977-81
  • Royal Norwegian CSIR (NTNF, Oslo) Post-Doctoral Fellow, Norwegian Institute of Technology, Trondheim (Norway), Physical Electronics Division, 1975-77.
  • Served External examiners of a large number Ph.D. theses from India and abroad
  • Served Faculty Selection Committees as a member at IIT-Hyderabad, Guwahati, Roorkee, Ropar,  and Patna; Central University Rajasthan; MNIT Jaipur, ISM Dhanbad, CGCRI Kolkata, IISc Bangalore, IISST Tiruvananthapuram, CUSAT, NIT Suratkal, Delhi Technological University
  • Chair, Project Review Steering Groups (PRSG) of several projects sponsored and funded by DeitYand DRDO sponsored projects in the area of Fiber Optics and Photonics
  • Served as member of the Selection Boards of the British Council Delhi for several Scholarships like Chevening, UKIERI etc
  • Nodal contact in India for the Steering Committee of UNO’s International Year of Light 2015 activities

Patents

  • I. C. Goyal, R. K. Varshney, B. P. PAL, and A. K. Ghatak, November 18 (2003), Design of a small residual dispersion fiber along with a matching DCF, No. US 6,650,812 B2.
  • B. P. PAL, K. Pande, and K. Thyagarajan, 2003, "Broadband DWDM link (covering both C- and L- bands of EDFA) design" submitted to Indian Patent Office in April 2003 (Application no.593/DEL/2003).

Chair/ co-chair/ Member of the Technical Program Committee/Advisory Committee of international conferences in the area of Photonics:

Over 50;Listed below are those since 2014:

  1. 5th Workshop on Specialty Optical Fibers and their Applications (WSOF 2017), Limassol, Cyprus, Greece, 11-13 Oct.
  2. OPTICAL METRO NETWORKS AND SHORT-HAUL SYSTEMS X (OE132), SPIE PHOTONICS WEST 2018, San Francisco, USA, Jan 27 - Feb 1 (2018).
  3. IEEE/OSA Optical Fiber Communication Conference (OFC-2018), San Diego, CA, USA, March 11-15 (2018).
  4. International Conference on Optical Fiber Sensors (OFS-25), Jeju, Korea, April 24-28 (2017)
  5. OPTO SPIE PHOTONICS WEST 2014, 2015, 2016, and 2017 Conference on Optical Metro Networks and Short-Haul Systems, San Francisco, Feb 1-6 (2014), Feb 7-12 (2015), Feb 13-18 (2016), and Jan 28-Feb 2 (2017).
  6. XIII PHOTONICS 2016 IIT Kanpur India, Dec 4-8, 2016
  7. 5th JSAP-OSA Joint Symposia Program Committee, Niigata, Japan, Sep. 13-16, 2016
  8. WRAP 2015, 2nd IEEE Workshop on Recent Advances in Photonics, Dec. 16-17, 2015 at IISc Bangalore
  9. ICMAP 2013 & ICMAP 2015 International Conference on Microwaves and Optics, ISM Dhanbad, Dec. 13-15 (2013) and Dec. 11-13 (2015)
  10. WSOF 2015, 4th International Workshop on Specialty Optical Fibers, Hong Kong, Nov.4-6, 2015
  11. IEEE TENCON 2015, Macau, Nov. 1-4, 2015
  12. OFS 2015 24th Conference on Optical Fiber Sensors, Curitaba (Parana), Brazil, Sep. 28 – Oct 2, 2015
  13. JSAP-OSA 2015 (Japanese Society for Applied Physics joint annual conference), Nagoya, Japan, September 13-16, 2015
  14. ICOP 2015 International Conference on Optics and Photonics Golden Jubilee Symposium of Optical Society of India (OSI), Kolkata, Feb 20-22, 2015
  15. IEMOPTRONIX 2014 International conference on Optoelectronics and Applied Optics, IEM, Kolkata, Dec. 17-18, 2014
  16. XII PHOTONICS 2014 IIT Kharagpur Dec. 13-16
  17. Optical Sensors (SENSORS) collocated OSA Topical meeting with Bragg gratings, Nonlinear Photonics and Specialty Optical Fibers, Barcelona, Spain, July 27-31, 2014
  18. JSAP-OSA 2014 (Japanese Society for Applied Physics joint annual conference), Sapporo, Hokaido, Japan, September 17-20 (2014)
  19. OFS 2014 23rd Conference on Optical Fiber Sensors, Santander, Spain, June 2-6, 2014
  20. ICOL 2014 International Conference on Optics and Optoelectronics, IRDE Dehradun, March 5-8 (2014)
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