Abstract

The design and implementation of a high-speed optical-ring-topology-based free-space optical interconnect is described. This interconnect system operates at 500 MHz and consists of 16 laser transmitters, a four-channel free-space interconnect, and a high-speed receiver. A nearest-neighbor interconnect is demonstrated. At the data rate of 500 MHz the total system throughput is 8 Gbits/s. The system can easily be operated at much higher data rates since the rate is limited only by the electronic circuitry. A discussion is given about device issues such as optical switching devices, and practical system-design issues such as integration and interface with current electronic systems are considered. This interconnect is promising to the implementation of ultrafast massively parallel single-instruction multiple-data machines.

© 1994 Optical Society of America

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