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. 20, 2014
Filed:
Jan. 17, 2008
Claude Pare, St-Augustin-de-Desmaures, CA;
Pierre Laperle, St-Augustin-de-Desmaures, CA;
Huimin Zheng, Quebec, CA;
Andre Croteau, Saint-Agapit, CA;
Claude Pare, St-Augustin-de-Desmaures, CA;
Pierre Laperle, St-Augustin-de-Desmaures, CA;
Huimin Zheng, Quebec, CA;
Andre Croteau, Saint-Agapit, CA;
Other;
Abstract
Multi-cladding optical fibers to be used in the context of fiber amplifiers and fiber lasers are described herein. Embodiments of optical fibers include a rare-earth doped core into which the signal field is to be amplified. The doped core is surrounded by multiple claddings that guide the pump field to be absorbed by the reactive core material. The first cladding has a depressed refractive index to improve high-order mode bending losses without incurring significant fundamental mode bending losses.