We experimentally demonstrate the operation of a hybrid integrated optoelectronic circuit with optical input and output consisting of a GaAs/ AlGaAs multiple-quantum-well ( MQW) photodetector, modulator and GaAs metal semiconductor field effect transistor ( MESFET). 将GaAs/AlGaAs多量子阱光探测器、光调制器与GaAs场效应晶体管(FET)混合集成,构成FET-SEED灵巧象元。