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:
Dec. 28, 2004
Filed:
Mar. 14, 2001
Matthew J. Dejneka, Corning, NY (US);
Adam J. Ellison, Corning, NY (US);
Dmitri V. Kuksenkov, Painted Post, NY (US);
John D. Minelly, Painted Post, NY (US);
Carlton M. Truesdale, Corning, NY (US);
Luis A. Zenteno, Painted Post, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
An optically active fiber ( ) is disclosed for making a fiber laser ( ) or an amplifier ( ). This double-clad structured active fiber ( ) has a core ( ), doped with an optically excitable ion having a three-level transition. The core ( ) has a core refractive index and a core cross-sectional area. An inner cladding ( ) surrounds the core ( ). The inner cladding ( ) has an inner cladding refractive index less than the core refractive index, an inner cladding cross-sectional area between 2 and 25 times greater than that of the core cross-sectional area, and an aspect ratio greater than 1.5:1. An outer cladding ( ) surrounds the inner cladding ( ) and has an outer cladding refractive index less than the inner cladding refractive index.