Abstract
Novel dual wavelength electro-optical bistability has been demonstrated in a resistor biased InGaAs/AlGaAs multiple quantum well self electro-optic effect device by the use of n=1 and n=2 electron to heavy-hole exciton states. A new concept is proposed to obtain a dual wavelength optical set-reset latch in a single device structure, and the clear bistable operation is evidenced by photocurrent switching experiments. Advantages of this new device configuration are discussed.
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