Threshold crossing and spectral properties of a curved-grating distributed Bragg reflector quantum-well laser (c-DBR)

Abstract

We investigate the near-threshold properties of a two-dimensional curved-grating distributed-Bragg reflector laser provided with high transverse confinement. All fields are described in the spectral domain in the frame of an extended (3 × 3) transfer matrix formalism which takes into account the internal sources, as well as saturation of the gain medium through amplified spontaneous emission.