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This paper summarizes a consistent microscopic approach that allows for predictive calculations of laser gain/absorption, photoluminescence, and the intrinsic laser loss processes. The theory is first evaluated for an (AlGaIn)As quantum well system used in a vertical-external-cavity surface-emitting laser structure. Good agreement with experimental results is demonstrated. In a second application,...
A 1178 nm optically-pumped VECSEL sub-cavity (active mirror) consisting of a resonant periodic gain stack of 10 highly-strained InGaAs QWs grown on a 25-repeat passive DBR mirror was designed. This is to allow the rapid shift of the gain peak with increasing temperature and slower shift of the sub-cavity resonance. The calculated heat generated within the RPG stack due to the 808 nm pump laser can...
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