Coherent Optical Transmission Systems: A Circuit Designer’s Delight!

Speaker: Prof. Shalabh Gupta
Affiliation: IIT-Bombay

Hosted by OSA and SPIE Student Chapter

Abstract:  In recent times, the explosively growing demand for increased data rates in communication networks has culminated in rapid improvements in the capacity of optical links. Majority of these improvements have relied on the use of coherent techniques, which has in turn been enabled by the continued advancements in CMOS technologies. For upcoming requirements, use of coherent techniques is also being considered for high-capacity short reach optical interconnects for data centers, in addition to the current use in long haul links. However, power requirements of ADCs and DSPs make the use of coherent techniques prohibitive for such requirements.

In this talk, we will give an overview of coherent optical technology and then discuss a few techniques, including our approach of using analog domain signal processing, that can lead to “ultra-low-power” terabit-per-second optical interconnects.

Biography:  Shalabh Gupta received his B. Tech degree from the Indian Institute of Technology Kanpur (India) in 2001, and M.S. and PhD degrees from UCLA in 2004 and 2009, respectively, all in electrical engineering. For his PhD research, he worked on the development of high-resolution and high-speed analog-to-digital converters using the photonic time-stretch technique, with Professor Bahram Jalali as his supervisor.

From 2003-2006, the speaker worked in industry on the design of analog integrated circuits for high-speed serial links and RFICs for wireless communications. Since 2009, he has been with the Indian Institute of Technology Bombay (India), where he is currently an Associate Professor of Electrical Engineering. His research interests include design of high-speed integrated circuits for wired, wireless and optical communication systems.

For more information, contact Prof. Bahram Jalali (jalali@ucla.edu)

Date/Time:
Date(s) - Apr 13, 2017
3:00 pm - 4:00 pm

Location:
E-IV Faraday Room #67-124
420 Westwood Plaza - 6th Flr., Los Angeles CA 90095