YQI Webinar - Hui Cao

Event time: 
Friday, May 7, 2021 - 12:00pm to 1:00pm
YQI Researchers
Zoom See map
Event description: 

Controlling laser dynamics for parallel random number generation

Nonlinear light-matter interactions induce irregular pulsations and filamentation in high-power multi-mode lasers. To control the nonlinear interactions between the lasing modes and the gain material, we manipulate the spatial structure of cavity resonances and vary their characteristic length scales. By tailoring the cavity geometry of a broad-area laser, we are able to disrupt the coherent nonlinear processes that form self-organized structures and cause temporal instabilities. With spatio-temporal instabilities suppressed, we utilize the spatio-temporal interference of numerous lasing modes to achieve massively-parallel ultrafast random bit generation with a chip-scale laser diode.

Zoom link (Yale login required)