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:
Feb. 26, 2019
Filed:
Feb. 02, 2017
Fujikura Ltd., Tokyo, JP;
National University Corporation Hokkaido University, Sapporo-shi, Hokkaido, JP;
Yusuke Sasaki, Sakura, JP;
Hitoshi Uemura, Sakura, JP;
Kunimasa Saitoh, Sapporo, JP;
Takeshi Fujisawa, Sapporo, JP;
FUJIKURA LTD., Tokyo, JP;
NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, Sapporo-shi, Hokkaido, JP;
Abstract
A multicore fiber includes: a first core configured to propagate an LPmode, an LPmode, and an LPmode light beam; and a second core configured to propagate an LPmode light beam, wherein a different mode interaction section is provided in which a propagation constant of the LPmode light beam propagated through the first core is matched with a propagation constant of the LPmode light beam propagated through the second core, a different mode non-interaction section is provided in which propagation constants of the LP mode light beams propagated through the first core are not matched with propagation constants of the LP mode light beams propagated through the second core, and the first core includes an inner core and an outer core surrounding the inner core with no gap and having a refractive index higher than a refractive index of the inner core.