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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editor: Keren Bergman
  • Vol. 7, Iss. 10 — Oct. 1, 2008
  • pp: 861–875

Enhanced scaling and performance of an optical interconnect based on wavelength-division-multiplexed clockwork routing

E. Bravi and D. Cotter  »View Author Affiliations


Journal of Optical Networking, Vol. 7, Issue 10, pp. 861-875 (2008)
http://dx.doi.org/10.1364/JON.7.000861


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Abstract

An optical routing network for applications requiring large numbers of nodes and low latency, such as the interconnection network inside a future high-end supercomputer, is described. The network is a development of an existing architecture based on a combination of clockwork routing and wavelength division multiplexing (WDM-CR). Although using the same underlying photonic technologies as WDM-CR, the new architecture has several advantages, including the following: the network can be scaled to greater numbers of nodes; routing between closely located nodes is more direct, resulting in lower latency and higher overall throughput; arbitration and control mechanisms are simplified; and the need for optical amplification is removed. Results obtained from full discrete-event traffic simulations demonstrate scalability to interconnection networks as large as 4096 nodes in a flat architecture.

© 2008 Optical Society of America

OCIS Codes
(060.4259) Fiber optics and optical communications : Networks, packet-switched
(060.4265) Fiber optics and optical communications : Networks, wavelength routing

ToC Category:
Optical Routers

History
Original Manuscript: July 3, 2008
Revised Manuscript: August 21, 2008
Manuscript Accepted: September 5, 2008
Published: September 29, 2008

Virtual Issues
Optical Routers (2008) Journal of Optical Networking

Citation
E. Bravi and D. Cotter, "Enhanced scaling and performance of an optical interconnect based on wavelength-division-multiplexed clockwork routing," J. Opt. Netw. 7, 861-875 (2008)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jon-7-10-861


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References

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