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:
Apr. 22, 2003
Filed:
Sep. 27, 2001
George C. K. Chen, Santa Clara, CA (US);
Fibera, Inc., Saratoga, CA (US);
Abstract
A method and system for providing wavelength-locked multi-channel signals with respect to a wavelength reference. Wavelengths of a plurality of radiation sources are introduced to at least one etalon having a gas medium. The etalon produces a plurality of equally spaced spectral lines and is tuned by varying its optical index of refraction, by varying the characteristics of its gas medium. The optical index of refraction is then fixed, by fixing the characteristics of its gas medium, and thus locking the plurality of spectral lines with respect to the wavelength reference. In particular, the etalons may be tuned by varying the pressure or composition of their gas-tunable mediums until the spectral lines of the etalon align with the ITU grid.