ANALYTICAL MODELING OF AlGaAs/GaAs VERTICAL CAVITY SURFACE EMITTING LASERS (VCSELS) OPERATING AT 850 nm FOR FREE-SPACE OPTICAL COMMUNICATION

Abstract

Analytical modeling of a Vertical Cavity Surface Emitting Laser (VCSEL) based on GaAs/AlGaAs material system has been presented in this paper. The VCSEL is expected to emit the laser radiation at 0.85 µm wavelength which may be useful for free-space-optical communication (FSOC) through the available atmospheric window. The different properties of the VCSEL have been simulated analytically. The studies thus developed will provide useful design guidelines for the experimentalists for optimizing their device prototypes.