The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 15, 2009
Filed:
Jan. 10, 2006
Ke-cai Zeng, Fremont, CA (US);
Ke-Cai Zeng, Fremont, CA (US);
Sunrise Telecom Incorporated, San Jose, CA (US);
Abstract
A wavelength measurement or monitoring system provides a tunable Fabry-Perot optical filter. At least one known light source is used to calibrate and correlate separate wavelength bands scanned by the tunable Fabry-Perot optical filter. At least one wavelength reference is utilized to calibrate at least one wavelength band of the tunable Fabry-Perot optical filter. The wavelength reference is transferred to a wavelength band that is identified for measurement when the wavelength reference is not in a wavelength band identified for measurement by the tunable Fabry-Perot optical filter. An unknown optical signal is scanned through the tunable Fabry-Perot optical filter. The wavelengths in the unknown optical signal are specified.