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. 14, 2009
Filed:
Aug. 31, 2007
Simo Tammela, Espoo, FI;
Per Stenius, Espoo, FI;
Simo Tammela, Espoo, FI;
Per Stenius, Espoo, FI;
Liekki Oy, Lohja, FI;
Abstract
A light-amplifying fiber arrangement including a pump fiber including glass and a bridge element. At least a portion of a side of the bridge element has been fused to at least a portion of a side of the pump fiber. An active fiber includes a light-amplifying core and a first cladding. The first cladding includes glass. At least a portion of a side of the active element has been fused to at least a portion of a side of the bridge element. A second cladding surrounds the pump and active fibers in order to confine pump light to the fibers. The second cladding includes glass. The arrangement allows coupling of high power levels into the pump fiber, wherein splicing of pigtails to the arrangement is easier than e.g. in case of conventional doubly clad fibers.