The deployment of photonic quantum technologies outside of laboratories and into application
environments involves new components and system architectures, many of which are based on
photonic integrated circuits (PICs). In this talk, I will present our lab’s research on PIC components that
harness nonlinear optical processes in the context of optical atomic clocks and quantum sensors. For
such applications, nonlinear frequency conversion can generate the coherent visible and short near-
infrared light needed to probe atomic transitions and create a frequency comb that phase-coherently
divides an atomically-stabilized optical frequency down to a detectable microwave frequency. I will
present results on microresonator optical parametric oscillators operating across the visible and octave-
spanning microresonator frequency combs suitable for optical clockworks, and discuss opportunities
and challenges associated with building systems based on these technologies.
Biography: Kartik Srinivasan is a Fellow of the National Institute of Standards and Technology, a Fellow
of the NIST/University of Maryland Joint Quantum Institute, and an Adjunct Professor of Physics at the
University of Maryland. He received B.S., M.S., and Ph.D. degrees in Applied Physics from the California
Institute of Technology before joining NIST in 2007. Kartik has published research on topics such as
integrated quantum photonics, nonlinear nanophotonics, nanoscale electro-optomechanical
transducers, and photonic crystals. He has received the Presidential Early Career Award for Scientists
and Engineers, the Department of Commerce Bronze and Gold Medals, the NIST Samuel Wesley Stratton
Award, and is a Fellow of Optica (formerly OSA). He is a Deputy Editor of Optica Quantum.
*You will need to bring your cell phone, so you can sign in using the new QR code outside of ATL 2400. You will need to submit your first and last name, email, and affiliation on the form by 11:15am to be able to get lunch after the seminar. Lunch is first come, first served.*