IEEE Journal of  Selected Topics in Quantum Electronics, Vol. 23, NO. 2, March /April 2017. DOI: 10.1109/JSTQE.2016.2596259



   © 2016, IOLAB IIT Madras              

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Silicon Photonics @ IIT Madras

Since its inception in January 2007, the Integrated Optoelectronics Group has been actively engaged in novel design, fabrication and characterizations of integrated silicon photonic devices and circuits for communications, high performance computations and sensing applications.

The group is now equipped with micro/nano fabrication facilities (Centre for NEMS and Nanophotonics) and device characterization facilities (Integrated Optoelectronics Lab).

We are looking for bright and motivated PhD candidates for pursuing research in following topics:

(1) Silicon Photonics Devices for Quantum Computation and Communications;

(2) Silicon Photonics Devices for RF Signal Processing;

(3) Silicon Photonics Lab-On-Chip for Bio-Sensing;

Interested candidates with M.Tech/MS Degree in ECE/EE/Applied Physics  backgrounds may directly contact Prof. Bijoy Krishna Das (E-Mail: bkdas@ee.iitm.ac.in)

Available PhD Positions



Best poster presentation award in CLEO  PR- 2018 (Hong Kong) : Our PhD research scholar Ramesh K  has won  the best poster<read more>

Elected Executive Council Member of OSI: Prof. B.K. Das has been elected as a member of the Executive Council of Optical Society of  <read more>

Second best oral presentation award in ICAOP- 2017: Our PhD research scholar Parimal Sah has won the 2nd best oral presentation <read more>

Best oral presentation award in PHOTONICS - 2016: Our PhD research scholar Sumi R has won the best oral presentation award in <read more>


Ultra-Broadband Add-Drop Filter/Switch Circuit using Sub-Wavelength Grating Waveguides

Sumi R, Ramesh K. Gupta, Nandita DasGupta and Bijoy Krishna Das

R. K Gupta, S. Chandran,  and B. K. Das

Diffusion Doped p-i-n/p-n Diodes for Scalable Silicon Photonics Devices

Riddhi Nandi, Sreevatsa Kurudi and Bijoy Krishna Das

Proc. SPIE 10249, Integrated Photonics: Materials, Devices, and Applications IV, 102490Q (May 30, 2017)

Wavelength Independent Directional Couplers for Integrated Silicon Photonics

R. K Gupta, S. Chandran,  and B. K. Das

IEEE/OSA Journal of Lightwave Technology, Vol. 35, No. 22, pp. 4916-4923, November 15, 2017.

Design and Fabrication of Surface Trimmed Silicon-On-Insulator Waveguide with Adiabatic Spot-Size Converters

Sujith Chandran, Meenatchi Sundaram, Sreevatsa Kurudi and Bijoy Krishna Das

Applied Optics, Vol. 56, No. 6, pp. 1708-1716, 2017.

CSI Transactions on ICT, Vol. 5, No. 2, pp. 189-193, June 2017.

Multi-Input and Multi-Output SOI (MIMO-SOI) Platform for Silicon Photonics

Ramesh K. Gupta and Bijoy K. Das.

Photonic Bandpass Filter Characteristics of Multimode SOI Waveguides Integrated with Submicron Gratings

Parimal Shah and Bijoy Krishna Das

R. K Gupta, S. Chandran,  and B. K. Das

Applied Optics, Vol. 57, No. 9, pp. 2277-2281, 2018.

IEEE Journal of Selected Topics in Quantum Electronics, Vol. 25, Issue 3,  MAY/JUNE 2019.

“Integrated Optical Edge Filter using Apodized Sub-Wavelength Grating Waveguide in SOI"

 Sumi R, N. Dasgupta and Bijoy Krishna Das

 ECIO - 2018, Valencia, Spain, 30th May-1st June, 2018 (Poster)

Broadband wavelength filter device using a sidewall grating in multimode SOI rib waveguide

Parimal Sah and Bijoy Krishna Das

OFC 2017, Los Angeles, CA, USA ,19-23 March 2017 (Oral )

Integrated optical Mach-Zehnder interoferometer with  a sensing arm of sub-wavelength grating waveguide in SOI

Sumi R, N. Dasgupta and Bijoy Krishna Das,

IEEE Sensors, Glasgow, Scotland, UK, 29th Oct-1st Nov, 2017 (Poster)

Diffusion doped p-I-n/p-n diodes for scalable silicon photonics devices

Ridhhi Nandi, Sreevasta Kurudi and Bijoy Krishna Das

SPIE Microtechnologies, Barcelona, Spain, 8-10 May 2017 (Poster)

Novel wavelength filter devices in SOI for optical interconnect applications

B.K. Das, R.K. Gupta, P. Sah, and S. Chandran

ICMAT-2017, Suntec Singapore , 18-23 June,2017 (Invited)

Integrated Optical Ultra-Broadband Add-Drop Filter in Silicon-On-Insulator Platform

Sumi R, R.K. Gupta, N. Dasgupta and Bijoy Krishna Das

OFC 2018, San Diego, USA, 11th -15th  March 2018 (Oral)

“Wideband MZI based Thermo-Optic Switch with Slab Integrated Microheater in SOI “

 R. K. Gupta and Bijoy Krishna Das

 CLEO - 2018, Hong Kong, 29th July- 3rd  August, 2018 (Poster)


Integrated Optoelectronics Group, June 2017


Department of Electrical Engineering, IIT Madras, Chennai-600036, India