Cascaded core multicore fiber and manufacturing method for same

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United States of America Patent

PATENT NO 9891378
SERIAL NO

15440228

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A multicore fiber includes a plurality of unit multicore fibers each including: a plurality of core portions; and a clad portion which is formed in an outer circumference of the core portions and has a refractive index lower than a maximum refractive index of the core portions. The plurality of the core portions have substantially same refractive index profile and different group delays at same wavelength in same propagation mode. The core portions of the multicore fiber are configured so that the core portions of the plurality of the unit multicore fibers are connected in cascade, a maximum value of differential group delays between the core portions of the multicore fiber is smaller than a reduced value of a maximum value of differential group delays between the core portions of each unit multicore fiber as a value in terms of a length of the multicore fiber.

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Patent Owner(s)

  • FURUKAWA ELECTRIC CO., LTD.;NIPPON TELEGRAPH AND TELEPHONE CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gonda, Tomohiro Tokyo, JP 7 15
Imamura, Katsunori Tokyo, JP 30 1008
Mori, Takayoshi Tokyo, JP 47 389
Sakamoto, Taiji Tokyo, JP 27 30
Sugizaki, Ryuichi Tokyo, JP 65 647
Wada, Masaki Tokyo, JP 36 192
Yamamoto, Fumihiko Tokyo, JP 13 100
Yamamoto, Takashi Tokyo, JP 930 10016

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