Channel gain control for an optical communications system utilizing frequency division multiplexing
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United States of America Patent
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Jun 5, 2007
Grant Date -
Jan 31, 2002
app pub date -
May 11, 2001
filing date -
May 12, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Attenuation caused by dispersion in an optical fiber communications system is compensated. A number of low-speed channels is to be transmitted across an optical fiber. Each low-speed channel is allocated a different frequency band for transmission. The attenuation caused by dispersion is estimated for each of the frequency bands. The power of each low-speed channel is adjusted to compensate for the estimated attenuation. The power-adjusted low-speed channels are frequency division multiplexed together to produce an electrical high-speed channel suitable for transmission across the communications system.
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