Two-section semiconductor lasers subject to optical injection

We investigate the dynamic properties of two-section semiconductor lasers subject to optical injection. A self-pulsating laser with a saturable absorber is used as the slave laser in the usual master-slave configuration of optically-injected lasers and a new model of the rate equations is applied. The dynamic properties are pictured in stability maps in the parameter space of the frequency detuning /spl omega/ and the injection strength K. New chaotic regions in the parameter space are found and investigated that are not observed in a simple injected semiconductor laser and also regions are reported where the field intensity pulsates periodically.