Gain compression in tensile-strained 1.55 μm quantum well lasers operating at first and second quantized states

Abstract

Gain compression coefficients in tensile-strained 1.55 μm single quantum well lasers are measured using an optical injection method. Lasers operating in the first and second quantized states are used. An explicit linear dependence of nonlinear gain on the differential gain is obtained from these measurements. These results are quantitatively compared to a recently proposed model involving carrier transport in and out of the quantum well.