Spectral Delay Algebraic Equation Approach to Broad Area Laser Diodes

Abstract

In this study, we discuss an efficient modeling approach for the simulation of broad-area laser diodes. Our method is based on folding the longitudinal propagation dimension into time delays which extend to the lateral dimension and to the influence of diffractive terms the idea of mesh decimation as it is discussed in . We compare the results of the dynamics obtained with our improved model that consists of coupled delay algebraic equations with the results of a standard traveling wave description in the cases of straight current stripes as well as in the important configuration of high-power tapered antireflection coated devices. We obtain an excellent agreement and an improvement of the integration time between one and two orders of magnitudes which may alleviate in some cases the necessity of using complex parallel codes.