<title>Correction to the half-wave spacing for resonant periodic gain structures</title>

Abstract

Optimization of resonant periodic gain structures relies on maximizing the overlap between the standing wave electric field and the gain medium at the peak gain wavelength. Traditional techniques which place the gain regions one-half wave apart do not account for reflections between gain and spacer regions. They result in a standing wave pattern in which the wavelength differs from the design wavelength and which is not uniform across the quantum wells. A simple theoretical model based on a perfectly resonant cavity will show how to correctly design resonant periodic gain devices to account for these effects. The model is subsequently generalized to facilitate multiple quantum well resonant periodic gain designs.