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. 17, 2018
Filed:
May. 02, 2017
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Hideo Iwase, Kunitachi, JP;
Yukihiro Inoue, Utsunomiya, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/032 (2006.01); G02B 6/02 (2006.01); F21V 8/00 (2006.01); H01S 5/14 (2006.01); G02B 6/38 (2006.01);
U.S. Cl.
CPC ...
G02B 6/02338 (2013.01); G02B 6/0005 (2013.01); G02B 6/0006 (2013.01); G02B 6/0008 (2013.01); G02B 6/02347 (2013.01); G02B 6/3855 (2013.01); H01S 5/141 (2013.01);
Abstract
A fiber structural body includes a first fiber, and a second fiber spliced to the first fiber such that light having propagated through the first fiber propagates through the second fiber. At least one of the fibers is a photonic crystal fiber. The second fiber is coated with a first coating layer and a second coating layer in order from a splice surface, and the first coating layer has a refractive index nlarger than that of a clad layer of the second fiber. In the fiber structural body, L, r, n, and NA satisfy a particular relationship.