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    Home     फाइबर ऑप्टि      Dr. Shyamal Kr Bhadra
 Fiber Optics and Photonics 
     
 
Dr. Shyamal Kumar Bhadra
Scientist G[Gr.IV(6)]

Fiber Optics and Photonic Laboratory
Central Glass & Ceramic Research Institute
Kolkata-700032, India,

Phone: 91 33 2473 3496/3469/3476 Ext-3278
FAX: +91-33-24730957
E-mail: skbhadra@cgcri.res.in

B.Sc. (Honours in Physics)
M.Sc. (Physics), University of North Bengal, Darjeeling, West Bengal, India
Ph.D. (Science), Jadavpur University, Kolkata, West Bengal, India



Dr. Bhadra joined CGCRI on 02. 01. 1984

Research Interest
  • Research interest in fiber laser, photonic crystal fiber & supercontinuum generation, nonlinear optics and ultrafast pulse dynamics in guided medium, nonlinear soliton dynamics in guided medium, and plasmonics and metamatrials

Professional Career
  • Participated and completed training course on vacuum science, techniques and applications under UNESCO programme at Bhaba Atomic Research Centre (BARC) and Bombay University during 1978-79
  • Worked as analytical and quality control supervisor in Carl Zeiss Instruments in analytical and planetary optics division during 1980-83
  • Continuing as Research Scientist since 1984 in Fibre Optics and Photonics Division

Awards/Recognition
  • Obtained Deokaran award in Glass in 1988 by Indian Ceramic Society.
  • Obtained Royal Society award project in 2009 with Heriot Watt University
  • Editor - Transactions of the Indian Ceramic Society from 2007

Selected Publications
Summary: In SCI Journals: 35; In Conference Proceedings: 16;
Selected Publications:
  1. "Development of rare-earth doped fibres for amplifier in WDM systems", S.K.Bhadra, R.Sen, M.Pal, M.C.Paul, M.K.Naskar, S.Chatterjee, M.Chatterjee & K.Dasgupta, IEE proceedings of Circuits, Devices & Systems, UK, 150(2003) 480.
  2. "Solving soliton perturbation problems by introducing Rayleigh?s dissipation function." Samudra Roy & Shyamal Bhadra. IEEE. Journal of Lightwave Technology. Vol.26, Number 14, (2008) 2301-2322
  3. "Raman amplification of optical pulses in silicon waveguides: Effects of finite gain bandwidth, pulse width and chirp." Samudra Roy, S.K. Bhadra and Govind P. Agrawal Journal of Optical Society of America B. Vol. 26, Number 1, (2009) 17-25
  4. "Modeling of microstructured non-zero dispersion shifted optical fiber with ultra-low dispersion slope" D.Ghosh, S.Roy, M.Pal, S. Bandyopadhyay and S.K. Bhadra Journal of Optical Society of America B. Vol. 26, Number 2, (2009) 337-345
  5. "Dispersive waves emitted by solitons perturbed by third-order dispersion inside optical fibers." Samudra Roy, S. K. Bhadra, Govind P. Agrawal Phy. Rev. A 79, 023824 (2009)

Patents filed / Granted
Indian:
  • Process of fabricating multifilament silica fibers, S K Bhadra, S. Chakraborty et al, No. 231611, Dt. 19.3. 2001
International:
  • "Process for making rare earth doped optical fibre", T.Bandyopadhyay, R.Sen, K.Dasgupta, S.K. Bhadra, and M.C.Paul, US patent, No.US6751990 ,Dt.22.6.2004
  • "Method of fabricating rare earth doped optical fibre", R.Sen, M.Pal, M.C. Paul, S.K. Bhadra et.al US Patent, No. US 6851281, Dt. 8.2.2005
  • "A process of making rare earth doped optical fibre" , M.Chatterjee, R.Sen, M.Naskar, M.Pal, M.C.Paul, S.K. Bhadra et al, US patent No. US 6889528, Dt. 10.5.2005

Notable Research Contribution
  • Taken lead role in developing and commercializing Optical fibre amplifier
  • Demonstrated supercontinuum (SC) generation in nonlinear photnic crystal fibre and modeled various nonlinear processeses responsible SC generation
  • Introducd Rayleigh?s dissipation function (RDF) to solve a wide range of perturbing problems related to nonlinear pulse propagation in guided medium.
  • Demonstrated nanocrystallite rare earth doped fibres for high power laser

PhD Supervision


Summary: Completed (2), Ongoing (4);
Research Topics: Optical fibre amplifier, nonlinear optics and supercontinuum generation, nonlinear photonic crystal fibre and grating embossed devices for alternative to plasmonic devices



    Updated on: 30-05-2010 15:00 
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