Method for photonic wavelength error detection
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United States of America Patent
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N/A
Issued Date -
Sep 19, 2002
app pub date -
Sep 13, 2001
filing date -
Mar 16, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Detecting photonic wavelength errors relies on wavelength shifting a photonic signal comprised of one or more channels. The photonic signal is wavelength shifted by slightly offset shift values to provide a pair of photonic signals with slightly offset wavelengths. The pair of photonics signals is filtered and differentially compared to provide a wavelength error signal.
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