Abstract
Based on the valence subbands of the zinc-blende GaN Ga 0.85Al 0.15N strained quantum wells obtained by a 6×6 Hamiltonian (including heavy hole, light hole and spin-orbit splitting band), optical gain and radiative current density are calculated for the strained quantum well laser structures. The compressive strain in the GaN well region strongly depresses the TM mode optical gain and enhances the TE mode optical gain.
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