Impact of signal-ASE four-wave mixing on the effectiveness of digital back-propagation in 112 Gb/s PM-QPSK systems

Limitations in the performance of coherent transmission systems employing digital back-propagation due to four-wave mixing impairments are reported for the first time. A significant performance constraint is identified, originating from four-wave mixing between signals and amplified spontaneous emis...

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Bibliographic Details
Published in:Optics express 2011-02, Vol.19 (4), p.3449-3454
Main Authors: Rafique, Danish, Ellis, Andrew D
Format: Article
Language:English
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Summary:Limitations in the performance of coherent transmission systems employing digital back-propagation due to four-wave mixing impairments are reported for the first time. A significant performance constraint is identified, originating from four-wave mixing between signals and amplified spontaneous emission noise which induces a linear increase in the standard deviation of the received field with signal power, and linear dependence on transmission distance.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.19.003449