发明申请
- 专利标题： Optical fiber polarization mode dispersion measurement method and measurement device
- 专利标题（中）： 光纤偏振模色散测量方法及测量装置
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申请号： US10521236申请日： 2003-07-18
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公开(公告)号： US20050259241A1公开(公告)日： 2005-11-24
- 发明人: Shoji Tanigawa , Tomoharu Sagawa , Masataka Ikeda , Shoichiro Matsuo , Kuniharu Himeno , Koichi Harada
- 申请人： Shoji Tanigawa , Tomoharu Sagawa , Masataka Ikeda , Shoichiro Matsuo , Kuniharu Himeno , Koichi Harada
- 优先权： JP2002-211387 20020719; JP2002-261283 20020906
- 国际申请： PCT/JP03/09175 WO 20030718
- 主分类号： G01M11/00
- IPC分类号： G01M11/00 ; G01M11/02 ; G01N21/00
摘要：
A method of measuring polarization mode dispersion of an optical fiber includes inputting linearly polarized pulse light into an optical fiber, separating the input linearly polarized light from backscattered light from the optical fiber, detecting a light intensity of the backscattered light as time series data since the generation of the pulse light, calculating a fluctuation of the detected light intensity in the time series data, and evaluating polarization mode dispersion in the optical fiber, based on the calculated fluctuation value.