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Proceedings Paper

Method to calculate penalty caused by OADM/OXC nodes in WDM networks
Author(s): Wei Zhao; Xiaoping Zheng; Yuanliang Chu; Hanyi Zhang
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Paper Abstract

A formula used to calculate the power penalty caused by optical nodes such as OADM/OXC nodes in WDM all optical networks is deduced on the base of interference between electric fields by taking the phase character of node transmission into account. To prove its correctness, we use the formula to figure out the power penalties in the case where the central frequencies of multiplexer/demultiplexer (MUX/DEMUX) stand away from the ITU-T grid, and compare them with experimental results. Both calculating and experimental results show that when central frequency of MUX/DEMUX changes from ¨C30GHz to 40 GHz with respect to ITU-T grid, the corresponding power penalty changes up to about 6.5dB, and the maximum difference between them is 0.5dB.

Paper Details

Date Published: 23 August 2002
PDF: 8 pages
Proc. SPIE 4906, Optical Components and Transmission Systems, (23 August 2002); doi: 10.1117/12.480617
Show Author Affiliations
Wei Zhao, Tsinghua Univ. (China)
Xiaoping Zheng, Tsinghua Univ. (China)
Yuanliang Chu, Tsinghua Univ. (China)
Hanyi Zhang, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 4906:
Optical Components and Transmission Systems
WeiSheng Hu; Shoichi Sudo; Peter Kaiser, Editor(s)

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