Mode stability and spectral properties of resonant periodic gain surface-emitting lasers

Abstract

Use of resonant periodic gain media provides enhanced gain for a specific design wavelength and propagation direction. Here we describe the modal properties and emission spectra of CW optically pumped GaAs/A1GaAs resonant periodic gain surfaceemitting lasers as functions of pump power, and for small temperature variations in the vicinity of 300 K. We consider in detail the achievement of fundamental transverse mode operation and hence narrow spectral widths.