OPTICAL FIBER FOR AMPLIFICATION, OPTICAL AMPLIFIER, AND METHOD FOR CONTROLLING OPTICAL AMPLIFIER

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United States of America Patent

APP PUB NO 20250105578A1
SERIAL NO

18833531

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An amplification optical fiber according to the present disclosure is an amplification optical fiber doped with a rare earth element, the amplification optical fiber including: a first cladding enclosing cores of the amplification optical fiber; and a second cladding enclosing the first cladding, in which the two or more cores are disposed inside the first cladding in a cross section of the amplification optical fiber, and a core cladding ratio Rcc, which is a ratio of a sum of areas of the two or more cores to a sum of areas of the two or more cores and the first cladding in the cross section of the amplification optical fiber, is 0.0095

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Patent Owner(s)

Patent OwnerAddress
NIPPON TELEGRAPH AND TELEPHONE CORPORATIONCHIYODA-KU TOKYO 100-8116

International Classification(s)

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  • 2022 Application Filing Year
  • H01S Class
  • 1137 Applications Filed
  • 263 Patents Issued To-Date
  • 23.14 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20222023202420250255075100

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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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges48300255075100125150175200225250275300325350375400425450475500525

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