Nonlinear Dynamics in Semiconductor Lasers and VCSELs

The studies of dynamics properties for these lasers are important not only from a fundamental physical aspect of nonlinear dynamics and chaos but also applications. Both edge-emitting semiconductor lasers with external perturbations and VCSELs with and without external perturbations are excellent models for chaos systems, since a rich variety of nonlinear dynamics can be observed. Also these chaotic lasers are applied as light sources for secure communications. In this review, the author focuses on the effects of optical feedback and optical injection both for edge-emitting narrow-stripe semiconductor lasers and VCSELs. Some nonlinear dynamics in edge-emitting semiconductor lasers with optical feedback and optical injection are presented. Next nonlinear dynamics in VCSELs with optical feedback and optical injection are described by taking into considerations of polarization and spatial-mode oscillations.