Effects of carrier transport on the L-I characteristics of QW lasers in the presence of spatial hole burning

In this paper, we study the effects of carrier transport and carrier capture on the linearity of the light-current characteristics of a semiconductor laser using an analytically solvable model. We include various physical processes within the model and study how they affect laser linearity. The technique used shows how to integrate the photon and electron transport within a single model, and the conclusions reveal some interesting aspects of semiconductor laser characteristics.