Distributed raman amplifier systems with transient control
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United States of America Patent
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Aug 27, 2002
Grant Date -
N/A
app pub date -
Dec 4, 2000
filing date -
Nov 3, 2000
priority date (Note) -
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Abstract
Distributed Raman amplifier systems are provided in which gain transients are controlled. Signal taps may be used to monitor optical signal powers at network nodes. A telemetry channel may be used to share information between nodes. Information on the output power of a given node may be passed to a subsequent node using the telemetry channel. The subsequent node may use feed-forward and feedback control schemes to control Raman gain transients in the preceding transmission fiber span based on the output power information received over the telemetry channel.
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