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Channel gain control for an optical communications system utilizing frequency division multiplexing

  • US 7,228,077 B2
  • Filed: 05/11/2001
  • Issued: 06/05/2007
  • Est. Priority Date: 05/12/2000
  • Status: Expired due to Term
First Claim
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1. In an optical fiber communications system including an optical fiber, a method for compensating for dispersion effects in the optical fiber, the method comprising:

  • receiving at least two low-speed channels, each low-speed channel allocated a different frequency band of an optical fiber communications system for transmission across the communications system;

    for each low-speed channel, estimating attenuation caused by dispersion resulting from transmission of the low-speed channel across the optical fiber in the frequency band allocated to the low-speed channel;

    adjusting a power of each low-speed channel to compensate for the estimated attenuation caused by dispersion; and

    frequency division multiplexing the power-adjusted low-speed channels to produce an electrical high-speed channel for transmission across the communications system.

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