Abstract
Multiple quantum well (MQW) semiconductors can exhibit a number of nonlinear optical phenomena associated with the clearly resolved, room temperature excitons. These are of practical interest for optically bistable devices, mode-locking of semiconductor lasers and phase conjugation. For instance, refractive nonlinearities associated with the saturation of the exciton can be very sensitive [1]. The quantum confined Stark effect can also be employed to produce optical nonlinearities at low power [2,3].
© 1988 Optical Society of America
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