Method to calculate penalty caused by OADM/OXC nodes in WDM networks

Wei Zhao; Xiaoping Zheng; Yuanliang Chu; Hanyi Zhang

doi:10.1117/12.480617

23 August 2002 Method to calculate penalty caused by OADM/OXC nodes in WDM networks

Wei Zhao, Xiaoping Zheng, Yuanliang Chu, Hanyi Zhang

Proceedings Volume 4906, Optical Components and Transmission Systems; (2002) https://doi.org/10.1117/12.480617
Event: Asia-Pacific Optical and Wireless Communications 2002, 2002, Shanghai, China

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 —30GHz 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.

Citation Download Citation

Wei Zhao, Xiaoping Zheng, Yuanliang Chu, and Hanyi Zhang "Method to calculate penalty caused by OADM/OXC nodes in WDM networks", Proc. SPIE 4906, Optical Components and Transmission Systems, (23 August 2002); https://doi.org/10.1117/12.480617

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