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Generalized Principal-State-of-Polarization Analysis and Matrix Model for Piezoelectric Polarization Controllers |
LI Zheng-Yong;WU Chong-Qing;YANG Shuang-Shou;TIAN Chang-Yong;ZHAO
Shuang;WANG Yong-Jun |
| Institute of Optical Information, Beijing Jiaotong University, Beijing 100044Key Laboratory of Luminescence and Optical Information of Ministry of Education, Beijing Jiaotong University, Beijing 100044 |
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| Cite this article: |
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LI Zheng-Yong, WU Chong-Qing, YANG Shuang-Shou et al 2008 Chin. Phys. Lett. 25 1325-1328 |
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Abstract We introduce a generalized concept of principal state of polarization (PSP) to analyse the piezoelectric polarization controller (PPC) and find each PPC unit can be described by a rotation matrix determined by the PSP. Our PPC has
three components, each made of a jaw and a piezoelectric actuator with the squeezing direction tilted 0°, 45° and 0°, which are driven by a tunable power supply. We demonstrate that all the polarization rotation angles are linear to driving voltages and the PSP of unit 2 is nearly orthogonal to others which are almost equal. Taking some approximate treatments we obtain the matrix model of our PPC with respect to three driving voltages. The average error of our theoretical model is 1.51°, and the polarization response time is 50μs, which is promising to realize an open-loop control of polarization.
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| Keywords:
42.81.Gs
42.79.Bh
42.25.Ja
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Received: 08 January 2008
Published: 31 March 2008
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