A highspeed monolithic optical interface switch LSI is developed using a GaAs MSM photodetector and large-scale integrated electric circuits. This LSI operates universally as a 1.8-Gb/s optical-input/optical-output 4-channel time-division switch, a 1.8-Gb/s Optical input/electrical-output 1 : 4 demultiplexer, a 2.0-Gb/s electrical-output 4 : 1 multiplexer and a 2.8-Gb/s electrical-input/electrical-output 4x4 space-division switch. It uses a new multistage 2x2 switch block having small hardware and highspeed operation. It can be expanded to a 16 x 16 optical-input/optical-output time-division switch operating at up to 1.8 Gb/s for Broadband-ISDN.
ASJC Scopus subject areas