Monolithic integration of InGaAsP/InP LED and transistor—a light-coupled bistable electro-optical device
A new bistable electro-optical integrated three-terminal InGaAsP/InP LED-transistor device is presented. Bistability is obtained by coupling part of the emitted LED light into the transistor base. The light output can be switched on and off by relatively low current pulses with 50 ns duration.