[Lecture] Chimera-like states and frequency comb generation in passive Kerr resonators


Title: Chimera-like states and frequency comb generation in passive Kerr resonators
Speaker: Prof. Yiqing Xu, Oakland University
Venue: Room 213, Building No.18, Wushan Campus
Time: December 30, Monday, 11:00

Optical Kerr resonators have become one of the intriguing platforms not only for the study of fundamental nonlinear phenomena but also for the design of soliton frequency combs. A Chimera-like state in an optical Kerr resonator is the coexistence of the coherent and incoherent domains in a coupled system. It manifests as a chaotic burst of nonlinearly-localized light, and we demonstrate unprecedented control over their creation and annihilation, as well as observe the internal fine structure using ultrafast time lens imaging. Meanwhile, we also demonstrate the soliton comb generation in a synchronously pulsed-driven silica waveguide ring resonator. By driving at integer (and fractional) multiples of free-spectral-range of the resonator, it allows us to obtain soliton frequency combs with adjustable repetition rates between 3.2 and 19.2 GHz.

Announced by the School of Physics and Optoelectronics