High-power electro-optic switch technology based on novel transparent ceramic

被引：0
作者：
张学娇 [1 ,2 ]
叶青 [1 ]
瞿荣辉 [1 ]
蔡海文 [1 ]
机构：
[1] Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques, Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences
[2] University of Chinese Academy of Sciences
来源：
Chinese Physics B | 2016年 / 25卷 / 03期
关键词：
switch; electro-optic switch; laser damage; optoelectronic material;
D O I：
暂无
中图分类号：
TH74 [光学仪器]; TQ174.758.23 [];
学科分类号：
0803 ; 0809 ;
摘要：
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 nonpolarizing 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 d B. 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.
引用
收藏
页码：189 / 197
页数：9
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