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. 16, 2003
Filed:
Oct. 03, 2001
Chris Myatt, Boulder, CO (US);
Kurt Vogel, Boulder, CO (US);
Precision Photonics Corporation, Boulder, CO (US);
Abstract
A wavelength locker includes a first beam splitter positioned in a beam path of an output beam produced by a laser. The first beam splitter splits the output beam into a first beam and a second beam. An interferometric optical element is optically contacted to the first beam splitter. The interferometric optical element receives the second beam from the first beam splitter and generates a third beam with an optical power that varies periodically with wavelength. A second beam splitter is positioned in a beam path of the first beam or in a beam path of an output beam produced by a laser, and creates a fourth beam. A first detector generates a first signal in proportion to an optical power of the third beam. A second detector generates a second signal in proportion to an optical power of the fourth beam. A wavelength of the output beam is adjusted in response to a comparison of the first and second signals and a predetermined reference signal level.