发明申请
- 专利标题: Method for measuring nonlinear optical properties
- 专利标题(中): 非线性光学特性测量方法
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申请号: US12656686申请日: 2010-02-12
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公开(公告)号: US20100142945A1公开(公告)日: 2010-06-10
- 发明人: Norifumi Shukunami , Tatsuya Tsuzuki
- 申请人: Norifumi Shukunami , Tatsuya Tsuzuki
- 申请人地址: JP Kawasaki
- 专利权人: FUJITSU LIMITED
- 当前专利权人: FUJITSU LIMITED
- 当前专利权人地址: JP Kawasaki
- 优先权: JP2006-193259 20060713
- 主分类号: H04B10/08
- IPC分类号: H04B10/08
摘要:
In an optical amplifier, an input light is supplied to one end of an optical fiber connected to an output port, and the power of a light in an opposite direction which is input to the output port from the one end of the optical fiber, is measured, thereby obtaining a stimulated Brillouin scattering (SBS) occurrence threshold in the optical fiber based on the measurement result. Then, using the SBS occurrence threshold, a relation between the input light power and an occurrence amount of the self phase modulation (SPM) or the like in the optical fiber is obtained to be reflected on a control of the optical amplifier, so that an occurrence of the SPM or the like in the optical fiber is suppressed. As a result, it becomes possible to accurately measure, with a simple configuration, the nonlinear optical properties of the optical fiber actually connected to the output port of the optical amplifier, so that the optical S/N ratio degradation due to a nonlinear optical effect can be effectively suppressed.
公开/授权文献
- US08068275B2 Method for measuring nonlinear optical properties 公开/授权日:2011-11-29