System and method for determining nonlinear mitigation perturbative distortion coefficients using a received optical signal
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United States of America Patent
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Feb 27, 2018
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app pub date -
Mar 31, 2015
filing date -
Mar 31, 2015
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Abstract
A processor circuit is provided in a coherent optical receiver module. The processor receives a series of electrical signals over a time period, representative of a series of optical signals received at instants of time within the time period. Each of the electrical signals is indicative of a respective one of a plurality of points on an IQ plane, each of the points being spaced from one of a plurality of predetermined points in the IQ plane by a corresponding one of a plurality of distortion values. In addition, the processor circuit calculates one or more perturbative coefficients based on one or more of the distortion values and determines data from the series of electrical signals based on the perturbative coefficient.
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