Abstract
A model for calculating the power characteristics of laser structures taking into account inhomogeneous excitation of quantum wells (QWs), recombination in the barrier regions, and nonlinear gain effects is developed. It is shown that, with increasing number of QWs, the output power of the structures at first considerably increases and then slightly decreases. In a wide range of injection currents, the optimal number of QWs is . The inhomogeneity of QW excitation increases with increasing injection current and decreases the laser power compared to homogeneous excitation.
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