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:
Oct. 20, 2015
Filed:
Mar. 02, 2012
Ekaterina Burov, Boulogne-Billancourt, FR;
Alain Pastouret, Massy, FR;
Louis-anne DE Montmorillon, Versailles, FR;
Aurelien Bergonzo, Chaville, FR;
Ekaterina Burov, Boulogne-Billancourt, FR;
Alain Pastouret, Massy, FR;
Louis-Anne de Montmorillon, Versailles, FR;
Aurelien Bergonzo, Chaville, FR;
Draka Comteq, B.V., Amsterdam, NL;
Abstract
An amplifying optical fiber includes an inner core, an inner cladding, a depressed trench, and an outer cladding (e.g., an outer optical cladding). Typically, the inner core includes a main matrix (e.g., silica-based) doped with at least one rare earth element. The depressed trench typically has a volume integral Vof between about −2200×10μmand −1600×10μm. Exemplary embodiments of the amplifying optical fiber are suitable for use in a compact configuration and high power applications.