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:
Aug. 15, 1978
Filed:
May. 02, 1977
Canadian Patents and Development Limited, Ottawa, CA;
Abstract
A CW Brillouin ring laser utilizing a low loss optical fiber and a pair of partially reflective mirrors positioned to form a ring optical path with the fiber ends, produces a Brillouin shifted Stokes beam when a pump beam is directed into one end of the optical fiber. The Brillouin beam propagates around the ring in a direction opposite to the pump beam. The pump beam is coupled into the ring through one of the partially reflective mirrors and the laser output is the portion of the Brillouin beam passing through the other partially reflective mirror. In the Brillouin laser system, a second pump beam may be directed into the other end of the fiber to produce a second Brillouin beam propagating in a direction opposite to the first Brillouin beam, providing a laser with two distinct Brillouin beam outputs.