发明申请
- 专利标题: Methods and apparatus for polarization control
- 专利标题(中): 用于偏振控制的方法和装置
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申请号: US10796930申请日: 2004-03-10
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公开(公告)号: US20050199787A1公开(公告)日: 2005-09-15
- 发明人: Hongbin Zhang , Li Liu , R. Jander , Alexei Pilipetskii
- 申请人: Hongbin Zhang , Li Liu , R. Jander , Alexei Pilipetskii
- 申请人地址: US NJ Morristown 07960
- 专利权人: Tyco Telecommunications (US) Inc.
- 当前专利权人: Tyco Telecommunications (US) Inc.
- 当前专利权人地址: US NJ Morristown 07960
- 主分类号: G02B26/00
- IPC分类号: G02B26/00 ; G02F1/01 ; G01J4/00 ; H01J40/14
摘要:
Methods and apparatus of performing polarization control for optical transmissions are provided. The methods and apparatus enable polarization control devices to achieve a desired output state of polarization regardless of the input state of polarization. The desires state of polarization can be achieved by rotating waveplates in a polarization controller in a sequential fashion. Each waveplate may be continually adjusted or dithered so long as the feedback signal satisfies a feedback condition. Once the feedback signal exceeds the feedback condition, the next waveplate in the polarization controller is adjusted. This enables the methods and apparatus to rapidly adjust the state of polarization away from dead spots and minimize loss control problems.
公开/授权文献
- US07154670B2 Methods and apparatus for polarization control 公开/授权日:2006-12-26
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