He joined IIT-Kharagpur as an Assistant Professor in 1980 and became Professor and Head of the Department of Electronics and Electrical Communication Engineering. Currently, he is holding a Professor position on re-employment.
Prof. Gangopadhyay has been very successful in his record of significant contributions in the domain of Optical and Wireless Communication.
Some of his major achievements are stressed here. His pioneering work on convolutionally coded M-ary PPM tems has a reference value providing high prospects for applications in deep-space channel and current infrared indoor communication.
He has introduced a new concept of line-coding plan to counteract non-uniform FM response of DFB laser and thereby improving the performance of coherent lightwave tems.
He has made a fundamental contribution to nonlinear bit synchronization and clock recovery schemes in optical receivers.
He has developed a highly efficient WDM simulator for the design of high capacity optical transmission tems influenced by fiber-induced nonlinear impairment.
As a Chief coordinator (1996-1999) at IIT-Kharagpur of the European Commission sponsored project on “Design of advanced wavelength-routed optical network” contributed significantly on photonic network architecture, protocols, network modeling, teletraffic analysis, design and software implementation.
He was responsible in the design and development of a highly efficient simulator for WDM tem influenced by fibre-induced nonlinear impairment (1996-2000).
He has accomplished an innovative scheme for joint dispersion and nonlinearity management using optical phase conjugation and distributed Raman amplifier (2002).
He put up his ardent and untiring effort in promoting, propelling and coordinating teaching and R&D programmes in Optical Communication at the Indian Institute of Technology, Kharagpur leading to his responsible role as the coordinator of “Photonics” mission project (2002-2004).
He has single-handedly established a modern Design and Simulation laboratory fully equipped with advanced software tools and Fibre optics tem laboratory for conducting postgraduate teaching and research in optical and wireless communication tems.
He has contributed significantly in a number of projects in the areas of Fibre optic communication and Mobile communication, which are sponsored by national agencies such as ISRO, DRDO, MHRD, DST etc. as well as international agency like European Commission.
He contributed two book chapters: 1) “IP and Wavelength routing network” in the book “IP over WDM” (Ed. Sudhir Dixit) by Wiley international (2003) and 2) “EU sponsored DAWRON Project” in “Optical Networking” (Ed A. Bononi) by Springer, 1999.
He has played a vital role in establishing international cooperation programmes with UK, Italy, Germany and Japan which turn out to be very effective in carrying out high- research programmes complementing each other’s strength and expertise.
