Abstract

Modulation responses for a set of strained-layer InGaAs quantum well lasers as calculated by a new version of Minilase are presented and compared to experiment. Based upon the agreement with measured data, Minilase is used further to associate gain saturation and low frequency rolloff with carrier capture in the quantum well. The capture rates, therefore, influence the modulation response in a significant way even if the time constants are much shorter than the inverse frequency of the modulation signal.

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