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. 23, 2013
Filed:
Oct. 20, 2010
Stuart Gray, Corning, NY (US);
Shenping LI, Painted Post, NY (US);
Ji Wang, Painted Post, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
Photodarkening resistant optical fiber lasing media and fiber lasers incorporating the same are disclosed. In one embodiment, an optical fiber lasing medium includes a core portion formed from silica-based glass comprising a rare-earth dopant and deuterium, the core portion having an index of refraction n, a numerical aperture NA. A concentration of defect color centers in the core portion is less than 1×10/cm. Deuterium is combined with the defect color centers to form reacted defect color centers that do not absorb ultraviolet and visible wavelengths of light. A first cladding portion is formed from silica-based glass, the first cladding portion surrounding and directly contacting the core portion and having an index of refraction n, wherein the index of refraction nof the first cladding portion is less than the index of refraction nof the core portion. Methods of forming the photodarkening resistant optical fiber lasing media are also disclosed.