Nonlinear Dynamics in Semiconductor Lasers 2023 - Abstract
Yi, Yu
Conventional lasers are constructed by cavities relying on reflections at interfaces between materials having different refractive indices. In contrast, the Fano laser is constructed by a virtual cavity with one (or both) mirrors realized by Fano interference between a discrete mode and a continuum of modes. This gives rise to a bound state in the continuum trapped by an “invisible” mirror (Fano mirror) that is highly dispersive, equipping the laser with a number of unique properties. In this talk, I will give an overview of the progress of semiconductor Fano lasers, emphasizing laser dynamics and quantum noise. Recent results demonstrating significantly reduced quantum-limited linewidth and the generation of intense optical pulses using the Fano laser in the microscopic regime will be highlighted. These developments open a route for bringing important characteristics of macroscopic lasers to the nanoscale.