Abstract
A new self-electro-optic effect device is proposed and demonstrated in an InGaAs/AlGaAs multiple quantum well diode structure by using different wavelengths for the signal and control wavelengths. The single resistor biased device exhibits optical transmission bistability between two stable states of the signal beam at λ1 when the control beam power at λ2 is varied. The two wavelengths λ1 and λ2 may be widely separated so that one is absorbed in the substrate and the other transmitted eliminating the need for substrate removal. The separate wavelengths also eliminate interference effects simplifying the design of vertical device arrays enhancing the possibility of system integration.
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