Polarization controller and use thereof |
Title： |
| Polarization controller and use thereof |
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Application Number： |
200510011471 |
Application Date： |
2005/03/25 |
Announcement Date： |
2005/10/05 |
Pub. Date： |
2007/08/22 |
Publication Number： |
1677171 |
Announcement Number： |
1333285 |
Grant Date： |
2007-8-22 |
Granted Pub. Date： |
2007-8-22 |
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
G02F 1/09, G02F 1/095, H04B 10/12 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Yang Changxi, Zhang Yang, Li Shiguang |
Key Words： |
Polarization controller, use |
Abstract： |
The invention is a polarization controller and its application. For realizing the polarization control and the random disturbing function of polarizing state, the invention discloses a polarization controller, including an optical part and an electric control part composed of driving circuits, where the optical part is formed cascadedly and alternatively of three magnetooptical crystal-made Faraday rotators and two 1/4 wave plates along the light path, and the two wave plates are fixed and the three Faraday rotators are controlled by the electric control part at the rotating angles of plus or minus 45 degrees, plus or minus 90 degrees and plus or minus 45 degrees, respectively, so as to realize the conversion of arbitrary determined input polarizing state to arbitrary determined output polarizing state. The structure is simple, the control is accurate, the cost is low and it is easy for system integration. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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