发明授权
- 专利标题： Optical amplification fiber, fiber optic amplifier, and optical communication system
- 专利标题（中）： 光放大光纤，光纤放大器和光通信系统
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申请号： US09969808申请日： 2001-10-04
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公开(公告)号： US06804046B2公开(公告)日： 2004-10-12
- 发明人: Motoki Kakui , Masahiro Takagi
- 申请人： Motoki Kakui , Masahiro Takagi
- 优先权： JPP2000-348422 20001115
- 主分类号： H01S300
- IPC分类号： H01S300
摘要：
This invention relates to an optical amplification fiber having a structure capable of exhibiting an excellent amplification characteristics, and the like. In the optical amplification fiber, the ratio (&agr;P/&agr;S) of an unsaturated absorption peak value &agr;P in a pumping light wavelength band of 0.98 &mgr;m to an unsaturated absorption peak value &agr;S in a signal wavelength band of 1.55 &mgr;m is 0.8 or more and, more preferably, 0.9 or more.
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