Somnath Bandyopadhyay
Senior Principal Scientist
Fiber Optics and Photonics Division
central glass and ceramic research institute
India
Biography
Dr. Somnath Bandyopadhyay received M.Sc. Tech. degree in Applied Physics Calcutta University, Calcutta, India. He worked in the field of optical computing and pattern recognition leading to his Ph.D. degree from the same university. In 1998 he joined Central Scientific Instruments organization (CSIO), Chandigarh, a research institute of CSIR, India as a scientist and during his stay at CSIO developed systems like ‘Dispergraph’, an image processing based analytical instrument used in rubber industry and optical fiber based intrusion detection system. He is in Central Glass & Ceramic Research Institute (CGCRI), another Institute of the CSIR, since year 2002. He had a major role towards initiation of fiber Bragg grating (FBG) based activities at CGCRI. In these years his interests have been focused mainly in the field of optical fiber Bragg grating based components for communication and sensors application, sensor demodulation techniques using FBG based linear edge filters, design and development of Bragg grating based ‘gain flattening filters’ (GFF) for EDFA, development of swept wavelength fiber laser source for use in FBG based sensor system. His work at IPL, University of Sydney, jointly with Professor John Canning, had opened up a new avenue for developing FBG with ultra high temperature (>1000C) stability.
Research Interest
Application of FBG sensors for structural health monitoring in aerospace and civil engineering application, ultrasonic sensing for damage detection in structure, long period grating sensors with overlay structure for chemical and biological sensing applications, FBG for ultra high temperature application.
Publications
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F Chiavaioli, P Biswas, C Trono, S Bandyopadhyay, A Giannetti, et al. (2014)Towards Sensitive Label-Free Immunosensing by Means of Turn-Around-Point Long Period Fiber Gratings. Biosensors and Bioelectronics 60: 305–310.
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Nandini B, Palas B, Kamal D, Somnath B(2013)Design optimization of fiber Bragg grating accelerometer for maximum sensitivity. Sensors and Actuators A: Physical 194: 31-39.
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S Bandyopadhyay, J Canning, P Biswas, M Stevenson, K Dasgupta (2011) A study of regenerated gratings produced in germanosilicate fibers by high temperature annealing. Opt Express 19: 1198-1206.