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. 23, 2023
Filed:
Dec. 27, 2018
Applicant:
Fujikura Ltd., Tokyo, JP;
Inventors:
Rintaro Kitahara, Chiba, JP;
Tatsuya Kishi, 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 3/16 (2006.01);
U.S. Cl.
CPC ...
G02B 6/02047 (2013.01); G02B 6/03616 (2013.01); G02B 6/02023 (2013.01); H01S 3/06733 (2013.01); H01S 3/06762 (2013.01); H01S 3/1618 (2013.01);
Abstract
An optical fiber includes a core that propagates a light that includes a wavelength equal to or larger than 1000 nm and equal to or smaller than 1100 nm. The light propagates in the core at least in an LP01 mode and an LP11 mode. A difference between a propagation constant of the light in the LP01 mode and a propagation constant of the light in the LP11 mode is 1735 rad/m or larger and 4000 rad/m or smaller.