A GaAs MESFET IC for Optical Multiprocessor Networks

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A GaAs. E/D mode, self-aligned, refractory-gate. MESFET chip process and circuit family has been developed for the integration of fiber-optic data link functions (e.g., photodetection, ampli-fication, clock recovery, and deserialization) on a single chip. This paper describes the process and presents results on integrating a complete optical receiver, including the photodiode and clock recovery circuits, onto one chip. The chip functions use over 2000 devices, and perform at 1-Gbit/s speed, while dissipating less than 300 mW of heat. This chip is the most complex high-performance OEIC reported to date. © 1989 IEEE