Optoelectronic oscillators with time-delayed feedback

The optoelectronic oscillator is an autonomous system where electronic and optical signals interact with each other in a feedback loop. This oscillator has found several applications in optics and microwave photonics, and has also permitted one to explore the rich and complex dynamical properties of nonlinear time-delayed systems. This article reviews theoretical and experimental developments, including applications for communication, sensing, ultrapure microwave generation, and neuromorphic computing.