Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Paul Chang0
Ke-Cai Zeng0
Date of Patent
September 29, 2009
Patent Application Number
11968337
Date Filed
January 2, 2008
Patent Primary Examiner
Patent abstract
A method for optical spectrum analysis provides a tunable optical filter and scans a wavelength range of an optical signal that is larger than the free spectrum range of the tunable optical filter. The optical signal is filtered through the tunable optical filter. Separate multiple optical orders of the wavelengths scanned and filtered by the tunable optical filter are individually detected.
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