Nonlinear Dynamics in Semiconductor Lasers - Abstract

Montrosset, Ivo

Passive mode locking in quantum dot Fabry Perot cavities: DDE simulation approach and its validation respect to FDTW

In the last years, we modified the standard delayed differential equation (DDE) model for ML ring lasers to better represent the saturation effects in the cavity and we applied it to the case of Fabry Perot ML lasers in which the gain and absorption saturation is certainly different than in a ring cavity. The Multiple Sections DDE formulation we introduced, only slightly increases the computational cost of the simulations but allows obtaining results in much better agreement with the FDTW approach than the standard DDE model. Results will be shown from the analysis of tapered lasers, external cavity lasers including intra and external cavity feedback effects, and to regimes involving GS and ES transitions. Both DDE and FDTW methods gave always results in reasonable quantitative agreement allowing always indicating the same direction in the parameter space to improve the laser characteristics.