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Research and development of optical fiber interconnection network

In this paper, we overview the research and development of optical interconnection network from 1993 to 2001 in Tianjin University. These works are divided into two categories. One is optical interconnection network for massively parallel processing systems. Another is optical interconnection technique for computer clusters. In the former, we have designed a massively parallel processing system that consists of 64 processors, which are interconnected by optical fiber links. In the later, we have developed giga-bitls optical links, hardware-routing optical rings and wavelength-routing dual rings. The optical layer data transmission speed has been improved from 20 Mbit/s in the massively parallel processing system to 1.25 Gbit/s in the computer clusters. Meanwhile, the communication latency has been reduced to 200 ns adopting hardware-routing technique. To further reduce the data packet routing-latency, wavelength routing technique has been implemented in a dual-wavelength ring. Finally, we have designed some novel network structures for tera-bit/s optical interconnection network.