METHOD AND APPARATUS FOR PROVIDING REAL-TIME CHROMATIC DISPERSION MEASUREMENT
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United States of America Patent
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Issued Date -
Aug 12, 2004
app pub date -
Feb 12, 2003
filing date -
Feb 12, 2003
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Abandoned
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Abstract
A real time chromatic dispersion measurement arrangement measures total amount of chromatic dispersion an optical signal has gone through using a novel technique based on spectrum analyses of dispersion distorted optical signals. A novel method of dispersion measurement and monitoring is used to provide the feedback control signal for tunable dispersion compensation devices. This invention provides a simple cost-effective means for real time chromatic dispersion measurement and monitoring so that optical link dispersion can be managed or monitored dynamically without requiring expensive bit-error rate monitoring.
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