发明名称 |
Optical fiber for Raman amplification, optical fiber coil, Raman amplifier, and optical communication system |
摘要 |
An optical fiber for Raman amplification amplifies a signal light with a pumping light. A chromatic dispersion at a wavelength of 1,550 nm is in a range between -70 ps/nm/km and -30 ps/nm/km. Raman gain efficiency with a pumping light of 1,450 nm is equal to or more than 5 (Wxkm)<SUP>-1</SUP>. Nonlinear coefficient at the wavelength of 1,550 nm is equal to or less than 5.0x10<SUP>-9 </SUP>W<SUP>-1</SUP>. Zero-dispersion wavelength is neither at a wavelength of the signal light nor at a wavelength of the pumping light. Cut-off wavelength is equal to or less than the wavelength of the pumping light.
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申请公布号 |
US2006126162(A1) |
申请公布日期 |
2006.06.15 |
申请号 |
US20060326356 |
申请日期 |
2006.01.06 |
申请人 |
FURUKAWA ELECTRIC CO., LTD. |
发明人 |
TANIGUCHI YUKI;EMORI YOSHIHIRO;SUGIZAKI RYUICHI;OGURI ATSUSHI;YAGI TAKESHI |
分类号 |
H01S3/00;G02B6/02;G02F1/35;H01S3/067;H01S3/094;H01S3/30 |
主分类号 |
H01S3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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