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:
Apr. 07, 2015
Filed:
Nov. 30, 2009
Applicants:
Kent Mattsson, Virum, DK;
Kim Per Hansen, Lyngby, DK;
Inventors:
Kent Mattsson, Virum, DK;
Kim Per Hansen, Lyngby, DK;
Assignee:
NKT Photonics A/S, Birkerod, DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/17 (2006.01); H01S 3/067 (2006.01); H01S 3/094 (2006.01); H01S 3/23 (2006.01);
U.S. Cl.
CPC ...
H01S 3/06754 (2013.01); H01S 3/06716 (2013.01); H01S 3/06729 (2013.01); H01S 3/094003 (2013.01); H01S 3/094007 (2013.01); H01S 3/094053 (2013.01); H01S 3/09408 (2013.01); H01S 3/2316 (2013.01);
Abstract
The invention relates to a high power amplifier waveguide for amplifying an optical signal wherein photo darkening due to high optical flux is reduced considerably. This is achieved by providing a cladding pumped amplifier waveguide wherein the optical mode overlap to the active material of the waveguide is low and/or wherein the active material is distributed over a large cross sectional region of the waveguide.