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OPTICAL RECEIVER AND LIGHT RECEIVING METHOD

  • US 20140334831A1
  • Filed: 07/28/2014
  • Published: 11/13/2014
  • Est. Priority Date: 02/23/2012
  • Status: Active Grant
First Claim
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1. An optical receiver that receives coherent light, the optical receiver comprising:

  • an amplitude adjuster that adjusts amplitude of an input signal to output an analog signal;

    a signal processor that receives a digital signal generated from the analog signal output from the amplitude adjuster, extracts clock components from the digital signal, and after establishing synchronization between the clock components and data components, extracts the data components from the digital signal to process the data components; and

    a controller that sets amplitude of the analog signal to first amplitude before establishment of synchronization by the digital signal, and changes the set amplitude to second amplitude that is smaller than the first amplitude after the establishment of synchronization.

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