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Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 13, 2015
Patent Application Number
13960103
Date Filed
August 6, 2013
Patent Citations Received
Patent Primary Examiner
Patent abstract
An optical digital coherent receiver includes: a polarization separation circuit configured to perform polarization separation on a received signal and output polarized signals; and a determination circuit configured to trigger a start of digital signal processing in a stage subsequent to the polarization separation circuit when it is determined that a distribution of a peak of an amplitude of one of the polarized signals has a characteristic corresponding to a modulation method used on a transmitting side.
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