Abstract
An InGaAsP/InP quantum well nanostructure sandwiched by distributed Bragg reflector mirrors (DBR) is employed as a high-speed optical switch based on optical bistability. The switching time between two stable states of bistable curve is estimated about 50 ps. We prove that OB/OM can be achieved just by the appropriate choice of laser intensities, tunneling rate, and detuning of coupling laser field. Moreover, we show that the superluminal light propagation can be obtained in this system by adjusting the tunneling rate. As a consequence, the proposed model can also be applied in rapid telecommunication.
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