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CLOCK REGENERATION FOR OPTICAL COMMUNICATIONS

  • US 20100098432A1
  • Filed: 10/21/2009
  • Published: 04/22/2010
  • Est. Priority Date: 10/21/2008
  • Status: Active Grant
First Claim
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1. A system for regenerating a client clock signal for use in optical communications, the system comprising:

  • a clock signal generator configured to generate a client clock signal; and

    a clock processor configured to receive the client clock signal and a carrier clock signal, the clock processor having;

    a carrier-side quantizer configured to calculate a carrier-side data quantity in response to the carrier clock signal;

    a client-side quantizer configured to calculate a client-side data quantity in response to the client clock; and

    a frequency command controller configured to generate a frequency command in response to the difference between the carrier-side data quantity and the client-side data quantity;

    wherein the clock signal generator is adjusted in response to the frequency command.

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