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:
Feb. 03, 2015
Filed:
Jun. 18, 2014
Applicant:
Ipg Photonics Corporation, Oxford, MA (US);
Inventors:
Valentin Gapontsev, Worcester, MA (US);
Valentin Fomin, Burbach, DE;
Mikhail Abramov, Burbach, DE;
Anton Ferin, Burbach, DE;
Assignee:
IPG Photonics Corporation, Oxford, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/30 (2006.01); H01S 3/067 (2006.01); G02B 6/036 (2006.01); G02B 6/14 (2006.01);
U.S. Cl.
CPC ...
H01S 3/06708 (2013.01); G02B 6/036 (2013.01); G02B 6/14 (2013.01);
Abstract
A clad absorber unit is provided on a passive fiber of a high power fiber laser system and operative to trap and remove modes propagating along the waveguide clad of the fiber. The mode absorber is configured with such an optimal length that the clad light may be removed in a localized manner, substantially uniformly removed over the entire length thereof. The absorber removing clad light in a unformed fashion includes a host material impregnated with diffusers.