Abstract
Inclusion of the optimized composite waveguide concept in the InGaAsP/InP PBMR laser construction resulted in an improvement of the differential quantum efficiency value by more than ten per cent. Analysis of the kinetic equations for the carrier and photon populations was used to evaluate various contributions (radiative recombination, Auger processes, electron drift and parasitic leakage currents) to the threshold current in the optimized PBMR geometry.
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