Dispersion compensation device and dispersion compensation control method

Dispersion compensation device and dispersion compensation control method

  • CN 101,136,707 B
  • Filed: 05/14/2007
  • Issued: 12/09/2015
  • Est. Priority Date: 08/31/2006
  • Status: Active Grant
First Claim
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1. according to the control signal of preset frequency, light signal is carried out to a device for dispersion compensation, this device comprises:

  • Demodulating unit, this demodulating unit carries out demodulation to the light signal through described dispersion compensation;

    Monitoring means, the monitoring of this monitoring means by the error condition of the light signal of described demodulating unit demodulation, and exports the rub-out signal representing described error condition;

    Filter unit, this filter unit carries out filtering to described rub-out signal, and the part allowing its medium frequency to be substantially equal to or less than described preset frequency is passed through;

    Generation unit, this generation unit generates corrected signal based on the described part of described control signal and described rub-out signal;

    AndSuperpositing unit, described corrected signal is superimposed upon in described control signal by this superpositing unit, to change the amount of described dispersion compensation.

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