Abstract

In the following paper results of AFC (amplitude-frequency characteristics) and PFC (phase-frequency characteristics) and temperature drift studies as well as of time delay of CW and impulse signals in QW InGaAs lasers with CW output power more than 1W at direct modulation are given. It is demonstrated, that power QW lasers can potentially surpass their low-power analogues and DH lasers on one of the major parameters – product of the maximum modulating frequency (bandwidth) and output modulated RF power.The developed analytical mechanism considers QW power lasers' working features in a static and dynamic mode and enables us to calculate AFC, PFC, their temperature drift and delay of modulating signals with a sufficient for engineering calculations accuracy.

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