Spectral analysis for coherent optical receivers
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United States of America Patent
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Apr 7, 2015
Grant Date -
Jan 16, 2014
app pub date -
Jul 11, 2013
filing date -
Jul 13, 2012
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Abstract
A coherent optical receiver measures a portion of a spectra of a multi-channel optical signal that includes at least one signal adjacent to a selected signal. The coherent optical receiver determines structure and bandwidth information for the measured portion of spectra, and determines one or more filter parameters for the selected signal based on the structure and bandwidth information of the at least one signal adjacent to the selected signal. The coherent optical receiver adjusts one or more active filter parameters of a carrier phase estimator in the optical coherent receiver to have values corresponding to the determined one or more filter parameters.
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