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Optical transmitter for transmitting a multilevel amplitude-shift-keying modulated signal

  • US 9,621,276 B2
  • Filed: 06/21/2013
  • Issued: 04/11/2017
  • Est. Priority Date: 07/19/2012
  • Status: Active Grant
First Claim
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1. An optical transmitter for transmitting a multilevel amplitude-shift-keying modulated signal, comprising:

  • an optical modulator for modulating an optical signal with a multilevel amplitude-shift-keying modulation;

    a spectral filter adapted to increase a high-frequency component of the modulated optical signal relatively to a central frequency component; and

    a feedback loop further comprising a quality measurement module for measuring a quality of the transmitted optical signal and a feedback controller for reconfiguring the spectral filter as a function of the measured quality.

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