发明名称 |
NON-LOSS DISPERSION COMPENSATION OPTICAL FIBER AND NON-LOSS DISPERSION COMPENSATION DEVICE USING THE SAME |
摘要 |
PURPOSE:To provide the non-loss dispersion compensation fiber which compensates dispersion and lessens the loss of the non-loss dispersion compensation fiber itself to zero and the non-loss dispersion compensation device constituted by using this fiber. CONSTITUTION:This non-loss dispersion compensation optical fiber compensates the dispersion by doping a rare earth element into the core part of an optical fiber having large negative dispersion and transmitting signal light in the state of exciting the fiber 4 by using an exciting light source 2. The non-loss dispersion compensation device constituted by using the above-mentioned optical fiber 4 has the optical fiber 4 which has a negative large dispersion value and has the length to compensate the desired accumulated dispersion value of a transmission line and is added with the rare earth element for the purpose of light amplification in a desired wavelength band, the exciting light source 2 which generates exciting light and an optical coupler 3 which makes the exciting light and the signal light incident on the inside of the optical fiber. |
申请公布号 |
JPH06123902(A) |
申请公布日期 |
1994.05.06 |
申请号 |
JP19920125076 |
申请日期 |
1992.05.18 |
申请人 |
NIPPON TELEGR & TELEPH CORP <NTT> |
发明人 |
OHASHI MASAHARU;TATSUTA MITSUHIRO |
分类号 |
G02B6/02;G02F1/35;H01S3/06;H01S3/07;H01S3/094;H01S3/10;H01S3/17;(IPC1-7):G02F1/35;G02B6/16 |
主分类号 |
G02B6/02 |
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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