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. 02, 2006
Filed:
Sep. 29, 2003
Jay W. Dawson, Livermore, CA (US);
Zhi Ming Liao, Pleasanton, CA (US);
Raymond J. Beach, Livermore, CA (US);
Alexander D. Drobshoff, Livermore, CA (US);
Stephen A. Payne, Castro Valley, CA (US);
Deanna M. Pennington, Livermore, CA (US);
Wolfgang Hackenberg, Munich, DE;
Domenico Bonaccini Calia, Garching, DE;
Luke Taylor, Montauban de Bretagne, FR;
Jay W. Dawson, Livermore, CA (US);
Zhi Ming Liao, Pleasanton, CA (US);
Raymond J. Beach, Livermore, CA (US);
Alexander D. Drobshoff, Livermore, CA (US);
Stephen A. Payne, Castro Valley, CA (US);
Deanna M. Pennington, Livermore, CA (US);
Wolfgang Hackenberg, Munich, DE;
Domenico Bonaccini Calia, Garching, DE;
Luke Taylor, Montauban de Bretagne, FR;
The Regents of the University of California, Oakland, CA (US);
Abstract
An optical fiber amplifier includes a length of silica optical fiber having a core doped with neodymium, a first cladding and a second cladding each with succeeding lower refractive indices, where the first cladding diameter is less than 10 times the diameter of the core. The doping concentration of the neodymium is chosen so that the small signal absorption for 816 nm light traveling within the core is less than 15 dB/m above the other fiber losses. The amplifier is optically pumped with one laser into the fiber core and with another laser into the first cladding.