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:
Jul. 22, 2014
Filed:
Mar. 15, 2011
Applicant:
Gerald Lee Heidt, Nibley, UT (US);
Inventor:
Gerald Lee Heidt, Nibley, UT (US);
Assignee:
Wasatch Photonics, Inc., Logan, UT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/32 (2006.01); H01S 5/0687 (2006.01);
U.S. Cl.
CPC ...
H01S 5/0687 (2013.01);
Abstract
A system includes a light source and a grating cube. The grating cube includes a transmission volume holographic grating positioned between two prisms. The transmission volume holographic grating diffracts part of a light source emission toward a reflective surface, producing diffracted light. At least some of the diffracted light is reflected off of the reflective surface, producing feedback light. The feedback light is fed back to the light source, thereby causing the light source emission to have the same wavelength as the feedback light.