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:
Nov. 25, 1997
Filed:
Sep. 14, 1993
Applicant:
Inventors:
George Anthony Rakuljic, Santa Monica, CA (US);
Amnon Yariv, San Marino, CA (US);
Victor Leyva, Los Angeles, CA (US);
Koichi Sayano, Montebello, CA (US);
Charles E Tyler, Sunnyvale, CA (US);
Assignee:
Accuwave Corporation, Santa Monica, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G03H / ;
U.S. Cl.
CPC ...
372 20 ; 372102 ; 359 15 ; 359 22 ;
Abstract
A laser utilizes feedback from a volume holographic grating used as a wavelength standard to lock the laser output wavelength to its desired value. This feedback can be non-optical, wherein the holographic filter output is used to actively control the wavelength through an external control mechanism. This feedback can also be optical, wherein a volume hologram reflection grating is used to generate optical feedback into the laser gain.