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:
Mar. 29, 2016
Filed:
Jul. 23, 2013
Applicants:
Fujikura Ltd., Tokyo, JP;
Osaka Prefecture University Public Corporation, Sakai-shi, Osaka, JP;
Inventors:
Ryo Maruyama, Sakura, JP;
Nobuo Kuwaki, Sakura, JP;
Shoichiro Matsuo, Sakura, JP;
Masaharu Ohashi, Sakai, JP;
Assignee:
FUJIKURA LTD., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/44 (2006.01); G02B 6/028 (2006.01); G02B 6/036 (2006.01); G02B 6/02 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0281 (2013.01); G02B 6/02047 (2013.01); G02B 6/03627 (2013.01); G02B 6/4401 (2013.01); G02B 6/02214 (2013.01);
Abstract
An optical fiber, including (i) an inner core having an α-power refractive index profile, (ii) an outer core having a refractive index of n1', and (iii) a cladding having a refractive index of n2 (n1′<n2<n1), is configured such that a depth of a trench, defined by n2−n1′, is sufficiently increased.