| ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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High-power electro-optic switch technology based on novel transparent ceramic |
| Xue-Jiao Zhang(张学娇)1,2, Qing Ye(叶青)1, Rong-Hui Qu(瞿荣辉)1, Hai-wen Cai(蔡海文)1 |
1. Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China |
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Abstract A novel high-power polarization-independent electro-optic switch technology based on a reciprocal structure Sagnac interferometer and a transparent quadratic electro-optic ceramic is proposed and analyzed theoretically and experimentally. The electro-optic ceramic is used as a phase retarder for the clockwise and counter-clockwise polarized light, and their polarization directions are adjusted to their orthogonal positions by using two half-wave plates. The output light then becomes polarization-independent with respect to the polarization direction of the input light. The switch characteristics, including splitter ratios and polarization states, are theoretically analyzed and simulated in detail by the matrix multiplication method. An experimental setup is built to verify the analysis and experimental results. A new component ceramic is used and a non-polarizing cube beam splitter (NPBS) replaces the beam splitter (BS) to lower the ON/OFF voltage to 305 V and improve the extinction ratio by 2 dB. Finally, the laser-induced damage threshold for the proposed switch is measured and discussed. It is believed that potential applications of this novel polarization-independent electro-optic switch technology will be wide, especially for ultrafast high-power laser systems.
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Received: 21 April 2015
Revised: 22 December 2015
Accepted manuscript online:
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PACS:
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42.25.Hz
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(Interference)
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42.79.-e
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(Optical elements, devices, and systems)
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42.70.Mp
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(Nonlinear optical crystals)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61137004, 61405218, and 61535014). |
Corresponding Authors:
Qing Ye
E-mail: yeqing@siom.ac.cn
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Cite this article:
Xue-Jiao Zhang(张学娇), Qing Ye(叶青), Rong-Hui Qu(瞿荣辉), Hai-wen Cai(蔡海文) High-power electro-optic switch technology based on novel transparent ceramic 2016 Chin. Phys. B 25 034202
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