Effect of second order signal-noise interactions in nonlinearity compensated optical transmission systems

Abstract

In this Letter, we theoretically and numerically analyze the performance of coherent optical transmission systems that deploy inline or transceiver based nonlinearity compensation techniques. For systems where signal-signal nonlinear interactions are fully compensated, we find that beyond the performance peak the signal-to-noise ratio degradation has a slope of 3 dBSNR/dBPower suggesting a quartic rather than quadratic dependence on signal power. This is directly related to the fact that signals in a given span will interact not only with linear amplified spontaneous emission noise, but also with the nonlinear four-wave mixing products generated from signal-noise interaction in previous (hitherto) uncompensated spans. The performance of optical systems employing different nonlinearity compensation schemes were numerically simulated and compared against analytical predictions, showing a good agreement within a 0.4 dB margin of error.

Publication DOI: https://doi.org/10.1364/OL.41.001849
Dataset DOI: https://doi.org/10.17036/421bac57-8e97-43e9-848c-88c604fb0069
Divisions: Engineering & Applied Sciences > Electrical, Electronic & Power Engineering
Engineering & Applied Sciences > Aston Institute of Photonics Technology
Engineering & Applied Sciences
Additional Information: Funding: EPSRC (EP/J017582/1, EP/L000091/1).
Uncontrolled Keywords: Atomic and Molecular Physics, and Optics
Full Text Link: https://www.osa ... ri=ol-41-8-1849
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2016-04-14
Accepted Date: 2016-03-14
Submitted Date: 2016-01-21
Authors: Al-Khateeb, Mohammad A.Z ( 0000-0002-1367-6777)
McCarthy, Mary ( 0000-0002-1348-1574)
Sánchez, Christian ( 0000-0003-3004-2773)
Ellis, Andrew ( 0000-0002-0417-0547)

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