Abstract
We have analyzed the combined self-consistent and well coupling effects on differential gain in quantum wells within the self-consistent solution of the Poisson, Schrödinger, and 4×4 Luttinger–Kohn (LK) equations. The many-body effects of band-gap renormalization, Coulombic scattering interactions, and a non-Markovian distribution are also included. The analysis has been performed for a 1.55 μm InGaAsP/InP lattice-matched system grown in the [001] direction. The analysis shows that self-consistent effects significantly affect the differential gain.
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