PhD

Arnab Goswami

Graduating Year	2024
Thesis Title	Four Wave Mixing in Silicon Waveguides for Quantum Photonic Applications(Thesis will be updated soon)
Career History	M.Tech. (NIT Agartala) – PhD (IIT Madras) – Chief Technology Officer (CPPICS, IIT Madras, Chennai)
Feedback	“The research ecosystem provided by the Centre for Programmable Photonic Integrated Circuits and Systems is world-class. I have gained extensive experience in all areas of technology development, including device design, fabrication, characterization, and packaging, with a focus on applications in quantum information processing and microwave photonic signal processing.”

Riddhi Nandi

Graduating Year	2021
Thesis Title	Electrical Control of Optical Bistability in Silicon Microring Resonators
Career History	M.Tech. (Calcutta University) – PhD (IIT Madras) – Silicon Photonics Principal Engineer (Global Foundries Pvt. Ltd Bangalore)
Feedback	“It was a good learning experience to work in IOLAB. The learning obtained during fabrication; characterization provides an edge over others. At the same time the learning obtained on the different device level research is unparalleled. Also, the atmosphere in IOLAB helped us to grow a lot.”

Sumi Radhakrishnan

Graduating Year	2020
Thesis Title	Silicon Photonics Devices with Sub-Wavelength Grating Waveguides
Career History	M.Tech (VIT University) – PhD (IIT Madras) – Postdoctoral Associates (University of Maryland, USA)
Feedback	“I feel privileged to use the state-of-the-art CNNP facilities as part of my PhD program. I realized its relevance when I joined for my post-doc in USA where there are only few equipment that I have not worked with in IIT Madras.”

Ramesh Kudalipalliyalil

Graduating Year	2019
Thesis Title	Broadband Silicon Photonics Devices with Wavelength Independent Directional Couplers
Career History	B.Tech. (MEA Engg. College, Kerala) - M.Tech (IIT Madras) – PhD (IIT Madras) – Postdoctoral Researcher (University of Maryland, USA) – Postdoctoral Research Associates (Information Sciences Institute, Virginia, USA)
Feedback	“It was amazing and unique research experience with a supporting and understanding supervisor, skilled and friendly lab mates, and well-developed infrastructure.”

Parimal Sah

Graduating Year	2018
Thesis Title	Integrated Photonics Filters with Distributed Bragg Reflectors in Silicon-on-Insulators
Career History	M.Tech (NIT Durgapur) – PhD (IIT Madras) – Assistant Professor (Bhagalpur College of engineering, India)
Feedback	“I had learned design, simulation, fabrication and characterization of integrated optoelectronic devices (particularly Bragg grating filters in SOI); attended international conference OFC 2017 at Loss Angeles for oral presentation; published two Journals, one Patent and attended many conferences; also the course IODAC taught by Prof. B. K. Das helped in developing a new PG level course for teaching M.Tech. students here at Bhagalpur College of Engineering, Bhagalpur, India”

Sujith Chandran

Graduating Year	2017
Thesis Title	Integrated Optical Microring Resonator in SOI for Widerange Refractive Index Sensing
Career History	M.Tech. (Keral University) – PhD (IIT Madras)– Postdoctoral Fellow (Khalifa University, UAE) - Senior Research Associate (Information Sciences Institute, Virginia, USA)
Feedback	“I feel honoured to be the part of IOLAB, great work culture and an Ideal group to learn from the fundamentals. Group (Saturday) meetings and discussions were the highlights of the group to groom every member. The research experience that I got from the IOLAB was exceptional. The group members were very supportive in professional and personal space, thanks to Prof. Bijoy as the leader. Prof. Bijoy is very strict about the research, and he wants everybody to understand what they are doing. This eventually makes every researcher from the group an expert in the area. Though we tend to feel stressed out at times as being the part of the group, we realize the value after graduation. My life at IIT-Madras/IOLAB was a steep learning curve in my life.”

Shantanu Pal

Graduating Year	2016
Thesis Title	Photorefractive Damage Resistance in Periodically Poled Lithium Niobate Waveguides with ridge Geometry
Career History	M.Tech. (IIT Kharagpur) – PhD (IIT Madras)– Device Modelling Engineer (Global Foundries Pvt. Ltd Bangalore)
Feedback	“It was a great experience in IOLab – learned how to do research starting from building experimental laboratory to publish papers in international journals.”

Postdoctoral Fellow

Dr. Diptasree Maitra Ghosh

Email	diptasree@cppics.iitm.ac.in
About	Dr. Diptasree Maitra Ghosh contributed to CPPICS(2021-2024) towards the development of fabrication processes, particularly in Electron Beam Lithography, and was responsible for developing a techno-commercial roadmap for the Indian Silicon Photonics market. Prior to this role, Dr. Ghosh had compleated her PhD in Biomedical Engineering from IIT Madras and her MS in Electrical Engineering from Morgan State University, USA.

MS (Research)

Rupesh Kumar Navalakhe

Graduating Year	2010
Thesis Title	Design, Fabrication and Characterization of Straight and Bend Optical Waveguide in Silicon-on-Insulator
Placed After Graduation	Application Engineer,KLA Tencor,Taiwan

John P. George

Graduating Year	2011
Thesis Title	Design, Fabrication and Characterization of Integrated Optical Directional Couplers in Silicon-on-Insulator
Placed After Graduation	PhD Program,University of Ghent,Belgium

Gaurang Bhatt

Graduating Year	2012
Thesis Title	Dispersion-Free DWDM Channel Interleaver with Silicon Waveguides
Placed After Graduation	PhD Program,Cornell University,USA

Solomon Krubhakar

Graduating Year	2013
Thesis Title	Integrated Optical 1X8 Power Splitter in SOI Platfom
Placed After Graduation	Software Engineer,Polaris Financial Tech. Pvt. Ltd.,Chennai, India

Uppu Karthik

Graduating Year	2014
Thesis Title	Multimode Interference based Mach-Zehnder Interferometer in SOI Platform for DWDM Applications
Placed After Graduation	Application Engineer,Applied Materials India Limited,Bengaluru, India

Harish Sasikumar

Graduating Year	2014
Thesis Title	Distributed Bragg Reflectors in Silicon Waveguides with Eleventh Order Diffraction
Placed After Graduation	PhD Program,Indian Institute of Science,Bengaluru, India

Rashmi Joshi

Graduating Year	2015
Thesis Title	Design and Process Optimizations of Integrated Photonic Crystal Structures
Placed After Graduation	Assistant Professor,NMIMS,Mumbai, India

Pavadai Shaktivel

Graduating Year	2015
Thesis Title	Design and Fabrication of Diffusion doped PIN Waveguides for Silicon Photonics
Placed After Graduation	Subject Matter Expert,Gate Forum,Chennai, India

Sidharth Ravindran

Graduating Year	2016
Thesis Title	Phase Error Analysis of Arrayed Waveguide Gratings using Gaussian Beam Approximation of Guided Mode Profiles
Placed After Graduation	Assistant Controller,Indian Navy,Cochin, India

Saket Kaushal

Graduating Year	2016
Thesis Title	Modelling and Experimental Investigation of an Integrated Optical Microheater in SOI
Placed After Graduation	Application Engineer,Applied Materials,Bengaluru,India

Sreevatsa K.R.

Graduating Year	2017
Thesis Title	Experimental Studies of Diffusion Doped PIN Waveguides for Integrated Silicon Photonics Circuits
Placed After Graduation	Product Engineer,Cypress Semiconductor,Bengaluru, India

Meenatchi Sundaram S

Graduating Year	2018
Thesis Title	Evaluation of Optical Losses in Silicon Waveguide Spot-Size Converter
Placed After Graduation	Staff Engineer,Siltera Sdn.Bhd,Kulim, Kedah, Malaysia

M.Tech/B.Tech

Rishav Banduri

Graduating Year	2022
Placed After Graduation	Global Foundry

Sashank Kaushik Sridhar

Graduating Year	2022
Placed After Graduation	University of Maryland, USA

Project Staff

Will be Updated Soon

Internship

Will be Updated Soon