Multistability in optically injected semiconductor lasers

Advanced techniques based on the bifurcation theory were used to explore new regions of coexistence of different modes of operation in semiconductor lasers. Bifurcations of attractors and repellors were detected in the plane where the injected field strength as well as detuning from the free-running laser resonant frequency both exist. The main bifurcations leading to multistability were found to be the saddle-node of the limit cycle bifurcation and the torus bifurcation. The regions in the parameter space where several attractors such as stationary points, periodic orbits, and quasiperiodic and chaotic oscillations coexist were identified.