Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
March 31, 2009
Patent Application Number
10866427
Date Filed
June 10, 2004
Patent Primary Examiner
Patent abstract
Systems and methods for evaluating an optical communication link are provided. The evaluation is based on a polarization analysis of received optical power. Such an analysis is able to differentiate between received noise and received optical signal power, even for typical multi-channel signals. By appropriately analyzing the polarization of received optical power, the link quality can be evaluated. Failures may be detected and optical signal to noise ratio may be measured.
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