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A 40 GHz clock 160 Gb/s 4×4 switch circuit using single flux quantum technology for high-speed packet switching systems

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6 Author(s)
Yorozu, S. ; Supercond. Res. Lab., ISTEC, Tsukuba, Japan ; Hashimoto, Y. ; Kameda, Y. ; Terai, H.
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Large-scale telecommunication systems in nationwide networks will require routers having a packet switching throughput capacity of over several-tens of Tb/s. In such future high-end routers, packet switches will need higher processing speeds than semiconductor devices can provide. We have demonstrated a 40 GHz clock, 0.8 mW, 160 Gb/s, 4×4 switch circuit that uses single flux quantum (SFQ) technology. The main components of an SFQ circuit are Josephson junctions and a superconducting loop. In designing the circuit, we have developed two key technologies: an automatic cell placement and route tool to increase designable circuit scale; a passive interconnection to decrease latency. These technologies will enable implementing Tb/s-scale switches and switch schedulers for high-speed packet switching systems.

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High Performance Switching and Routing, 2004. HPSR. 2004 Workshop on

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