Colloquia & Guest Speakers
High Power Sources in Silicon Photonics
Neetesh Singh, PhD, Senior Scientist, Center for Free-Electron Laser Science (CFEL), DESY
Monday, February 2, 2026
3:30 p.m.
Presented in-person in Goergen 101 and on Zoom
Abstract
In this talk, I will present recent advances in high-power, watt class integrated photonics that enable scalable, low-noise optical sources on chip. I will show how recently developed large-mode-area integrated photonics technology opens a new operating regime for integrated lasers, supporting continuous-wave to ultrafast sources with power levels previously inaccessible on silicon platforms. These capabilities point toward transformative opportunities in communications, quantum technologies, biomedical applications, and large-scale timing and synchronization systems.
Biography
Neetesh Singh is a Senior Scientist in the Ultrafast Optics and Laser X-ray Group at the Center for Free-Electron Laser Science (CFEL), DESY. He received his PhD in 2016 from the Center for Ultrahigh Bandwidth Devices for Optical Systems at the University of Sydney. Prior to joining DESY in 2019, he was a postdoctoral associate at the Massachusetts Institute of Technology (MIT). His research spans a broad range of areas, including linear and nonlinear silicon photonics, mid-infrared photonics, and high-power, low-noise laser and amplifier systems.