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. 07, 2017
Filed:
Mar. 07, 2016
Fujikura Ltd., Tokyo, JP;
National University Corporation Hokkaido University, Sapporo-shi, Hokkaido, JP;
Yusuke Sasaki, Sakura, JP;
Katsuhiro Takenaga, Sakura, JP;
Yoshimichi Amma, Sakura, JP;
Kunimasa Saitoh, Sapporo, JP;
FUJIKURA LTD., Tokyo, JP;
NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, Sapporo-shi, Hokkaido, JP;
Abstract
In a C band and an L band, the effective refractive indices of light propagating through the coresandadjacent to each other are different from each other such that a magnitude of crosstalk of light of a highest-order LP mode commonly propagating through the coresandadjacent to each other between the coresandadjacent to each other becomes a peak at a bending diameter smaller than a diameter of 100 mm, and the core has a higher refractive index in a center portion than in an outer circumferential portion such that a differential mode group delay of the coresandis 700 picoseconds/km or less.