Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Michael Fishteyn0
Stephan F. Wielandy0
Tsing Hua Her0
Date of Patent
January 30, 2007
0Patent Application Number
102425890
Date Filed
September 12, 2002
0Patent Primary Examiner
Patent abstract
An optical performance monitor particularly well-suited for use in dense wavelength-division multiplexed (DWDM) systems includes both a nonlinear optical detector and a conventional linear detector. The nonlinear optical detector, which may comprise a quadratic detector, is used to provide information, on a channel-by-channel basis, regarding chromatic dispersion, polarization mode dispersion and accumulated amplified spontaneous emission (ASE) noise in each signal wavelength.
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