RARE-EARTH DOPED FIBER, OPTICAL AMPLIFIER, AND METHOD FOR CONTROLLING OPTICAL AMPLIFIER

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United States of America

APP PUB NO 20250118941A1
SERIAL NO

18832029

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Abstract

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An optical amplifier of the present disclosure includes a rare-earth doped fiber including a plurality of cores, in which a v value of the plurality of cores of the rare-earth doped fiber is less than 2.405, the plurality of cores has a core pitch of a normalized coupling coefficient of 1.0×10−3 or more, and on injection of excitation light into a clad part of the rare-earth doped fiber in a state of being bent at a predetermined bending radius, propagating light in the rare-earth doped fiber is amplified with mode-dependent gain characteristics dependent on the bending radius.

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Patent Owner(s)

Patent OwnerAddress
NIPPON TELEGRAPH AND TELEPHONE CORPORATIONTOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
AOZASA, Shinichi Musashino-shi, Tokyo, JP 22 63
IMADA, Ryota Musashino-shi, Tokyo, JP 6 0
NAKAJIMA, Kazuhide Musashino-shi, Tokyo, JP 88 121
SAKAMOTO, Taiji Musashino-shi, Tokyo, JP 30 40

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