CONNECTION STRUCTURE FOR MULTI-CORE FIBER AND OPTICAL-FIBER-BUNDLE STRUCTURE, CONNECTION STRUCTURE FOR MULTI-CORE FIBERS, METHOD FOR EXCITING RARE-EARTH-DOPED MULTI-CORE FIBERS, AND MULTI-CORE-OPTICAL-FIBER AMPLIFIER

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United States of America Patent

SERIAL NO

14834448

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Abstract

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An optical-fiber-bundle structure is connected to one end of a multi-core fiber. The multi-core fiber has a tapered section formed therein. The outside diameter of the multi-core fiber and the core pitch thereof decrease in the tapered section. It is possible for the multi-core fiber to have an increasing core pitch on the connection-side thereof which connects to the optical-fiber-bundle structure; hence, it is possible to use an easy-to-use large-diameter optical fiber as the optical fiber to be provided in the optical-fiber-bundle structure. When connecting another multi-core fiber to the other end of the multi-core fiber, it is possible to match the outer diameters thereof; hence, when fusion splicing to one another, it is unlikely for a positional shift of the cores to occur.

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Patent Owner(s)

Patent OwnerAddress
FURUKAWA ELECTRIC CO LTD6-4 OTEMACHI 2-CHOME CHIYODA-KU TOKYO 1008322 ?1008322

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
IMAMURA, Katsunori Tokyo, JP 30 1008
MAEDA, Koichi Tokyo, JP 68 806
SAITO, Tsunetoshi Tokyo, JP 32 289
TSUCHIDA, Yukihiro Tokyo, JP 12 41
WATANABE, Kengo Tokyo, JP 23 77

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