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Proceedings Paper

Lasing cycles in WDM optical networks based on wavelength routing
Author(s): Zhigen Xu; Bingkun Zhou; Hanyi Zhang; Yanhe Li; Yili Guo; Xiaoping Zheng
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Paper Abstract

Closed all-optical cycles in wavelength division multiplexing (WDM) optical networks may generate lasing resulting in adverse effects to network performance. In this paper, causes and physical conditions for both all-optical idle cycles and all-optical leakage cycles are analyzed by using optical spectrum of the network. A five-node experimental optical network is built. Multiple lasing peaks are observed to co-exist and compete in a fiber. Affects of the filtering characteristic mismatch of optical nodes to all-optical lasing cycles are discussed. We point out that multiple closed leakage cycles may occur in one optical channel in the case of bandwidth mismatch. Two lasing peaks of leakage cycles are observed in one channel and they can co-exist with the signal wavelength. Finally, harms of lasing cycles are discussed and methods are proposed for eliminating them.

Paper Details

Date Published: 15 April 2004
PDF: 6 pages
Proc. SPIE 5282, Network Architectures, Management, and Applications, (15 April 2004); doi: 10.1117/12.523672
Show Author Affiliations
Zhigen Xu, Tsinghua Univ. (China)
Bingkun Zhou, Tsinghua Univ. (China)
Hanyi Zhang, Tsinghua Univ. (China)
Yanhe Li, Tsinghua Univ. (China)
Yili Guo, Tsinghua Univ. (China)
Xiaoping Zheng, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 5282:
Network Architectures, Management, and Applications
S. J. Ben Yoo; Kwok-wai Cheung; Yun-Chur Chung; Guangcheng Li, Editor(s)

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