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:
May. 22, 2007
Filed:
Aug. 07, 2003
Jill D. Berger, Los Gatos, CA (US);
Douglas W. Anthon, El Cerrito, CA (US);
Fedor A. Ilkov, Sunnyvale, CA (US);
David A. King, Menlo Park, CA (US);
Jill D. Berger, Los Gatos, CA (US);
Douglas W. Anthon, El Cerrito, CA (US);
Fedor A. Ilkov, Sunnyvale, CA (US);
David A. King, Menlo Park, CA (US);
Coherent, Inc., Santa Clara, CA (US);
Abstract
An apparatus for filtering an input beam of light to produce an output beam of light is provided. The apparatus facilitates tuning an input beam of light to a desired wavelength by directing the input beam of light, via a mirror, onto a diffractive optical element and returning the diffracted portion of the input beam of light as an output beam of light. The apparatus may also include a polarization recovery element adapted for receiving the input beam of light and outputting a first and second spatially offset beam of polarized light. The apparatus may also be configured as a tunable receiver by utilizing a detector to detect a characteristic of a filtered output beam. The output beam may be additionally filtered by a spatial filter.