Amplifying fiber and optical amplifier

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United States of America

PATENT NO 12099235
SERIAL NO

17427248

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Abstract

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An amplification fiber includes a core which is doped with an erbium ion and a cladding which surrounds the core and has a refractive index lower than a refractive index of the core, and a relative refractive index difference Δn51 between the core and the cladding is not more than a smaller one of values of a relative refractive index difference Δn1 expressed as a predetermined expression related to a radius a of the core and a relative refractive index difference Δn2 expressed as a predetermined expression related to the radius a of the core.

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Patent Owner(s)

Patent OwnerAddress
NIPPON TELEGRAPH AND TELEPHONE CORPORATIONTOKYO 100-8116

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Miyamoto, Yutaka Tokyo, JP 117 995
Ono, Hirotaka Tokyo, JP 25 151

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