发明授权
- 专利标题： Method of and device for measuring return losses in optical fiber components
- 专利标题（中）： 测量光纤部件回波损耗的方法和装置
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申请号： US10903申请日： 1998-01-22
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公开(公告)号： US5864400A公开(公告)日： 1999-01-26
- 发明人: Lorenzo Bottazzi , Silvano Donati , Marc Sorel , Tiziana Tambosso
- 申请人： Lorenzo Bottazzi , Silvano Donati , Marc Sorel , Tiziana Tambosso
- 申请人地址： ITX Turin
- 专利权人： Cselt - Centro Studi E Laboratori Telecommunicazioni S.P.A.
- 当前专利权人： Cselt - Centro Studi E Laboratori Telecommunicazioni S.P.A.
- 当前专利权人地址： ITX Turin
- 优先权： ITXTO97A0126 19970214
- 主分类号： G02B6/00
- IPC分类号： G02B6/00 ; G01M11/00 ; G01B9/02 ; G01N21/00
摘要：
A method of and an apparatus for measuring return loss in an optical fiber component. Radiation of a predetermined wavelength, e.g. from a laser, is launched into an optical fiber component, preferably through an optical fiber having a polarization control loop and the radiation reflected and the direct radiation are subjected to phase modification. An amplitude of the frequency component of the detected signal at the frequency imposed by phase modulation is measured and is used as the basis for evaluating the return loss.
公开/授权文献
- USD367137S Combined sponge and liquid dispenser 公开/授权日：1996-02-13
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