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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 17, Iss. 8 — Aug. 1, 1999
  • pp: 1302–

All-Optical Four-Fiber Bidirectional Line-Switched Ring

Xiaojun Fang, Rainer Iraschko, and Rohit Sharma

Journal of Lightwave Technology, Vol. 17, Issue 8, pp. 1302- (1999)


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Abstract

An all-optical four-fiber bidirectional line-switched ring (O-4F/BLSR) architecture is proposed. This new physical layer networking protocol uses wavelengths as tributaries and an optical supervisory channel to carry overhead information. Optical channels can be added and dropped from the ring, and virtual wavelength paths can be provisioned. Both node and link failures of a network can be protected through a two-layer protection scheme. Protection switching within the optical multiplex section layer (OMS) restores failure caused by loss of optical continuity in a way similar to the SONET 4F/BLSR line switching. Protection switching within the optical channel layer restores single channel failure using 1:N protection. Test results show that the O-4F/BLSR can restore traffic in less than 50 ms. A self-healing, bandwidth efficient, and scalable all-optical transport network evolving from this O-4F/BLSR architecture is possible.

[IEEE ]

Citation
Xiaojun Fang, Rainer Iraschko, and Rohit Sharma, "All-Optical Four-Fiber Bidirectional Line-Switched Ring," J. Lightwave Technol. 17, 1302- (1999)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-17-8-1302

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