Numerical study of noise-induced transitions in nonlinear dynamics of optically injected semiconductor lasers

Abstract

This study numerically investigates two different noise-induced transitions of nonlinear dynamics in optically injected semiconductor lasers based on the Lang-Kobayashi laser model. Spontaneous emission noise is observed to induce dynamical transitions from stable injection locking to period-one dynamics and from period-one to period-two dynamics when operating points are close to the corresponding dynamical boundaries, respectively. Such transitions follow a smooth dynamical evolution as the noise level increases. The resulting noiseinduced dynamical states exhibit features highly similar to their adjacent dynamical states that keep the same dynamical behaviors when subject to noise. Regions where the noise-induced dynamical transitions occur are identified.

Effects of Optical Laser Injection in Multistable Erbium Fiber Lasers

“…Between interesting results in the case of optical injection in semiconductor lasers, extreme events (EEs) have been recently investigated, and the probability of appearance of EEs can be controlled by the injection parameters applied to the locking regions of the diver-driving laser configuration (Huang et al 2022). In the case of numerical injected semiconductor lasers modelated by the Lang-Kobayashi equations, different noise-induced transitions have been reported Tseng et al (2022). Erbium doped fiber lasers has show different behaviors when optical injection is performed in this devices.…”