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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editor: Richard A. Linke
  • Vol. 3, Iss. 12 — Dec. 3, 2004
  • pp: 839–853

Cyclic crossbar network for photonic switching

Jiun-Shiou Deng, Wen-Yen Wang, Ming-Feng Lu, and Yang-Tung Huang  »View Author Affiliations

Journal of Optical Networking, Vol. 3, Issue 12, pp. 839-853 (2004)

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Feature Issue on Optical Interconnection Networks (OIN)

The rectangular crossbar network is commonly used in switching networks because it has the advantages of easy connection-path rebuilding, wide-sense nonblocking, and no crossover in its interconnection lines. However, this kind of network has two major disadvantages: one is that it has nonzero differential loss, and the other is that its signal-to-noise ratio (SNR) is decreased by both the increase of the network dimension and the insertion loss of switches. Here the cyclic crossbar network structure is presented. The cyclic crossbar network is similar to the rectangular crossbar network. For both types of network, an N×N network is constructed by N columns, and each column consists of N switches. The major difference is that construction with N backslash lines and N slash lines is used for the cyclic crossbar network. For every backslash line to have its crosspoint on the right side, the network structure is designed into a circle shape. In this type of network, the differential loss is eliminated and SNR is independent on insertion loss of switches, but the original advantages are maintained.

© 2004 Optical Society of America

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(060.4250) Fiber optics and optical communications : Networks
(200.4650) Optics in computing : Optical interconnects

ToC Category:
Optical Interconnection Networks

Original Manuscript: August 2, 2004
Revised Manuscript: August 2, 2004
Published: November 2, 2004

Virtual Issues
Optical Interconnection Networks (2004) Journal of Optical Networking

Jiun-Shiou Deng, Wen-Yen Wang, Ming-Feng Lu, and Yang-Tung Huang, "Cyclic crossbar network for photonic switching," J. Opt. Netw. 3, 839-853 (2004)

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