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. 04, 2004
Filed:
Dec. 14, 2001
Applicant:
Inventors:
Lew Goldberg, Fairfax, VA (US);
Marc Le Flohic, Saint Quey Perros, FR;
Assignee:
Keopsys, Inc., Fairfax, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/42 ; H01S 3/091 ; H01S 3/30 ;
U.S. Cl.
CPC ...
G02B 6/42 ; H01S 3/091 ; H01S 3/30 ;
Abstract
A method and apparatus for high power, broad gain, high efficiency, low noise, cladding pumped fiber amplifiers and lasers. The present invention allows a much higher pump light intensity in the inner cladding of a double cladding fiber to be achieved than is possible with conventionally pumped double cladding fiber amplifiers. The present invention utilizes a fiber taper in which the inner cladding decreases from a wide to narrow portion with the fiber core remaining the same diameter.