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. 14, 2020
Filed:
May. 12, 2017
Applicant:
Fujikura Ltd., Tokyo, JP;
Inventors:
Tatsuya Kishi, Chiba, JP;
Rintaro Kitahara, Chiba, JP;
Assignee:
Fujikura Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/02 (2006.01); G02B 6/036 (2006.01); H01S 3/067 (2006.01); H01S 3/08 (2006.01); H01S 3/094 (2006.01); H01S 3/16 (2006.01); H01S 3/23 (2006.01); H01S 3/0941 (2006.01);
U.S. Cl.
CPC ...
G02B 6/036 (2013.01); H01S 3/067 (2013.01); H01S 3/06708 (2013.01); H01S 3/06733 (2013.01); H01S 3/06754 (2013.01); H01S 3/0804 (2013.01); H01S 3/094007 (2013.01); H01S 3/094042 (2013.01); H01S 3/1618 (2013.01); H01S 3/2308 (2013.01); G02B 6/02023 (2013.01); G02B 6/03633 (2013.01); H01S 3/0675 (2013.01); H01S 3/09408 (2013.01); H01S 3/09415 (2013.01); H01S 3/094053 (2013.01); H01S 2301/03 (2013.01);
Abstract
An optical fiber, used in a laser device, propagates light having a wavelength of 1060 nm through a core in at least an LP01 mode and an LP11 mode. A difference between a propagation constant of light in the LP01 mode and a propagation constant of light in the LP11 mode is 1850 rad/m or more and 4000 rad/m or less.