Tutorial Review

Optical and Quantum Electronics

, Volume 25, Issue 6, pp 369-390

First online:

Gain and saturation in semiconductor lasers

  • Jian HuangAffiliated withDepartment of Electrical Engineering, Portland State University
  • , Lee W. CaspersonAffiliated withDepartment of Electrical Engineering, Portland State University

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Abstract

Several approaches have been developed for modelling the gain and saturation behaviour of semiconductor lasers, and this study includes a historical review of these various approaches. Special attention is given to rate equation models and to the possibility of so-called gain nonlinearities that might affect the CW and modulation performance of semiconductor lasers. Discussions are mainly limited to the GaAs/GaAIAs and InGaAsP/InP systems, for which the gain and gain nonlinearities have been most extensively studied.