Optimum delay length for a PMD compensator
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United States of America Patent
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Feb 26, 2008
Grant Date -
Mar 4, 2004
app pub date -
Sep 3, 2002
filing date -
Sep 3, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for selecting an optimum delay length in a polarization mode dispersion (PMD) compensator configured with a constant-length delay line and deployed in an optical communication system. The optimum delay length depends on the data modulation format, bit rate, and/or signal bandwidth and is preferably selected such that outage probability in the communication system is at a minimum. System performance of a PMD compensator configured with a constant-length delay line having the optimum length approaches that of a PMD compensator configured with a variable-length delay line. The method extends the application range of constant-length delay line PMD compensators while reducing the cost of implementing high-performance PMD compensation.
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