Optoelectronic transient response of an <i>n</i>-channel double heterostructure optoelectronic switch

Abstract

A bistable n-channel double heterostructure optoelectronic switch, fabricated as a three-terminal light-emitting diode, is reported and results are presented demonstrating simultaneous electrical and optical switching characteristics. Electrical turn-on times of 2 ns are observed, with corresponding optical turn-on times of 60 ns. Electrical turn-off transition times of 6 ns are observed with optimum optical turn-off times of 20 ns. These times are consistent with the device size and the measurement impedance.