Solid State Technology and Devices Seminar: Physics and applications of optical frequency combs and microresonators

Seminar | April 21 | 10-11 a.m. | Cory Hall, 521 - The Hogan Room

 Xu Yi, California Institute of Technology

 Electrical Engineering and Computer Sciences (EECS)

Frequency combs are having a broad impact on science and technology because they provide a way to coherently link radio/microwave-rate electrical signals with optical-rate signals. A new, miniature realization, the microcomb, that uses chip-based microresonators can potentially revolutionize instrumentation, time keeping, spectroscopy, and navigation. In this talk, I will start by reviewing the fundamentals of optical frequency combs and microresonators. Our recent progress demonstrating mode-locked soliton microcombs in silica microresonators will then be presented. This demonstration creates a rich landscape for research in nonlinear optical phenomena as well as frequency comb applications. Some of these results will be described, including the discovery of a new type of soliton, astronomical calibration for exoplanet studies, optical frequency division and microwave synthesis.

 ahburr@berkeley.edu, 510-642-2384