## Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten. # A self-consistent model of stripe geometry lasers based on the beam propagation method

**Abstract**

Using the propagating beam technique to solve Maxwell's equations together with a shooting method solution to the carrier diffusion equation, an iterative, self-consistent procedure is derived for determining the properties of stripe geometry lasers. This procedure allows the calculation of the power-current characteristics, differential quantum efficiencies, gain distributions, and near and far fields over a wide range of currents at and above threshold. Far above threshold, it was found, as expected, that symmetric and antisymmetric transverse modes can lase simultaneously.