Abstract
Semiconductor lasers with multiple electrical contacts have been passively mode-locked to produce pulses of 2-3-ps duration at repetition rates above 100 GHz.1,2 Part of the laser cavity is biased to act as an absorber, and these lasers do not require any external cavity or high frequency electrical input. We present results on passive mode-locking of both GaAs/AlGaAs and InGaAs/AlGaAs quantum well lasers at frequencies ranging front 42 to 120 GHz.
© 1990 Optical Society of America
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