A broadcast-and-select OADM optical network with dedicated optical-channel protection
A metro-area optical-ring network based on a novel optical add-drop multiplexer (OADM) architecture using a wavelength blocker is proposed. We demonstrate experimentally the performance of the OADM and capability of optical channel dedicated protection in a two-fiber ring network with 24/spl times/1...
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Published in | Journal of lightwave technology Vol. 21; no. 1; pp. 25 - 31 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
New York, NY
IEEE
01.01.2003
Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subjects | |
Online Access | Get full text |
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Summary: | A metro-area optical-ring network based on a novel optical add-drop multiplexer (OADM) architecture using a wavelength blocker is proposed. We demonstrate experimentally the performance of the OADM and capability of optical channel dedicated protection in a two-fiber ring network with 24/spl times/10 Gb/s dense wavelength division multiplexing traffic capacity. The channel-by-channel optical protection of the network is enabled by using a liquid crystal-based wavelength-selective switch as the protection switch and erbium-doped fiber amplifiers (EDFAs) with fast transient-gain control. The bit-error rate performance of the network is studied for the normal operation and for the transition to the protection state from a failure. The network protection for all channels is provided within 5 ms on a cable-cut failure. Importance of transient-gain control during protection switching to reduce the network transients is also discussed. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0733-8724 1558-2213 |
DOI: | 10.1109/JLT.2003.808638 |