I am predominanty working on Guided Wave Optics and related Devices & Circuits in Chip Scale (Photonics Integrated Circuits, PICs). My research includes Design, Fabrication (clean room based), and Characterization of PICs in different material platforms (Lithium Niobate, Silicon, Polymers, etc.) depending on its applications in the arena of Passive Optical Components (power splitters, polarization splitters, bandpass filters, etc.), RF-Photonics (modulators, switch matrices, etc.), Optical Sensors (using structures, such as, Mach-Zehnder Interferometer, micro-ring resonators, etc.), Optical Computing (reversible logic gates, etc.), Waveguide Optical Amplifers and Lasers (Er-doped waveguides, etc.) and Nonlinear Optics (new frequency generation, etc.). Many of these devices have direct applications in Fiber Optic Communication Systems & Networks.
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Design of carrier-depletion-based modulators on commercially available SOI substrates of varying device-layer thickness by A.r. A., De S. , Ganguly P. Journal of Optical Communications - (2026)
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Estimation of Soil Macro-nutrients using Visible Optical Transmission Spectroscopy by Pal S. K., De S. , Das S. K., Ganguly P. Journal of Optics - (2025)
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Performance analysis of a prime-parameterized Fibonacci spiral-based optical phased array by Sarma Inampudi A. K., A.r. A. , Ganguly P. , De S. arXiv - (2025)
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Grating emitters on 5 micron SOI substrates for photonic beam steering by A.r. A., Sarma Inampudi A. K., De S. , Ganguly P. Proc. SPIE 13904, Photonic Instrumentation Engineering XIII 139040P- (2026)
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Design optimization of MRR-based sensors for fertilizer detection: enhancing ER and enabling detector-based spectral shift monitoring by Pal S. K., A.r. A. , De S. , Das S. K., Ganguly P. Proc. SPIE 13904, Photonic Instrumentation Engineering XIII 139040O- (2026)
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Cascaded SU-8 based microring resonator for intensity-based optical detection of soil macronutrients by Pal S. K., Das S. K., Ganguly P. Proc. Frontiers in Optics, FIO/LS JW4A.3- (2025)
Co-Principal Investigator
- ATDC Cost Centre for External Users Various Organisations/Users
- ATDC Cost Centre for Internal Users VARIOUS DEPARTMENTS/CENTRES OF IIT KHARAGPUR
- National Centre for Quantum Accelerator Chip using Lithium Niobate (NCQAC) at IIT Kharagpur Ministry of Electronics and Information Technology
Ph. D. Students
Anjali A R
Area of Research: Photonic wire waveguide and its applications
Kinthada Likhita Sri
Area of Research: Nano photonics
Raktim Bhattacharya
Area of Research: Photonic Instrumentation and Imaging
Ria Sen
Area of Research: Electro-optic devices using LNOI
Suman Kumar Pal
Area of Research: Optical Sensors
Swagatam Bag
Area of Research: Quantum photonic devices using LNOI
