发明申请
- 专利标题： Method And Device For Stabilizing The State Of Polarization Of A Polarization Multiplexed Optical Radiation
- 专利标题（中）： 用于稳定极化复用光辐射极化状态的方法和装置
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申请号： US11665466申请日： 2004-10-22
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公开(公告)号： US20070280689A1公开(公告)日： 2007-12-06
- 发明人: Pierpaolo Boffi , Lucia Marazzi , Paolo Martelli , Mario Martinelli , Aldo Righetti , Rocco Siano
- 申请人： Pierpaolo Boffi , Lucia Marazzi , Paolo Martelli , Mario Martinelli , Aldo Righetti , Rocco Siano
- 申请人地址： IT Milano I-20123
- 专利权人： PIRELLE & C. S.P.A.
- 当前专利权人： PIRELLE & C. S.P.A.
- 当前专利权人地址： IT Milano I-20123
- 国际申请： PCT/EP04/11957 WO 20041022
- 主分类号： H04J14/06
- IPC分类号： H04J14/06
摘要：
A device and method for stabilizing the polarization of polarization multiplexed optical radiation includes an identified channel which is provided with a pilot signal. The device and method are based on providing to the polarization multiplexed optical radiation a controllable polarization transformation; measuring the optical power of a polarized portion of the identified channel downstream the polarization transformation; controlling, responsively to the optical power, the controllable polarization transformation so that the identified channel downstream the polarization transformation has a predefined polarization azimuth; providing to the optical radiation downstream the polarization transformation a further controllable polarization transformation; measuring the optical power of a polarized portion of the identified channel downstream the further controllable polarization transformation; and controlling, responsively to the optical power, the further controllable polarization transformation so that the identified channel downstream the further controllable polarization transformation has a predefined state of polarization.
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