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:
Jun. 30, 2015
Filed:
Jun. 13, 2014
Fujikura Ltd., Koto-ku, Tokyo, JP;
National University Corporation Hokkaido Univ., Sapporo-shi, Hokkaido, JP;
Hitoshi Uemura, Sakura, JP;
Koji Omichi, Sakura, JP;
Katsuhiro Takenaga, Sakura, JP;
Kunimasa Saitoh, Sapporo, JP;
FUJIKURA LTD., Tokyo, JP;
National University Corporation Hokkaido University, Sapporo-shi, JP;
Abstract
A fan-in/fan-out device includes a plurality of single-core fibers which are connected to a plurality of first cores of a multicore fiber and which include an elongated portion extending in a longitudinal direction so as to reduce a diameter and being connected to a first end portion of the multicore fiber at a second end portion in an extending direction of the elongated portion, where a refractive index distribution of each of the single-core fibers has a single peak, a relative refractive index difference of a second core with respect to a second cladding in each of the single-core fibers is 0.8% or more; and a second mode field diameter of the second end portion of the elongated portion is greater than a first mode field diameter of the first end portion of the multicore fiber.