J4 ›› 2012, Vol. 29 ›› Issue (1): 39-44.

• 激光技术与器件 • 上一篇    下一篇

LiNbO3晶体纳秒级光开关的研究

张百顺1,吴朝辉2,3, 周健2,3, 王首长2,3, 黄荔2,3, 郭强2,3   

  1. 1 解放军炮兵学院1系 安徽 合肥 230031; 
    2 中国科学院安徽光学精密机械研究所激光技术与应用研究室 安徽 合肥 230031; 
    3 安徽光子器件与材料省级实验室 安徽 合肥230031
  • 收稿日期:2011-02-22 修回日期:2011-03-21 出版日期:2012-01-28 发布日期:2012-01-28
  • 通讯作者: 张百顺(1975-),河南兰考人,博士,主要从事光电侦查,机器视觉,目标性能分析研究 E-mail:wuzhaohui20050@163.com

Research of a nanosecond optical switching with LiNbO3 crystal

Zhang Baishun1, Wu Zhaohui2,3, Zhou Jian2,3, Wang Shouzhang2,3, Huang Li2,3, Guo Qiang2,3   

  1. 1 Department of N0.1, Artillery Academy of PLA, Hefei  230031, China; 
    2 Laboratory of  Laser Technology & Applications, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei  230031, China; 
    3 Laboratory of Photonic Devices & Materials, Anhui Province, Hefei 230031, China
  • Received:2011-02-22 Revised:2011-03-21 Published:2012-01-28 Online:2012-01-28

摘要:

LiNbO3晶体由于其透光范围广,响应速度快,不易潮解等特点而广泛用于高精度和高速光开关快门。为了将LiNbO3光开关曝光时间拓宽到纳秒领域从而弥补现有的高速光开关的不足,文章阐述了LiNbO3作为光开关理论原理,对多波段通光的晶体长宽比进行了优化设计,并对LiNbO3纳秒级光开关的可行性进行了实验验证。实验半波电压与理论符合很好,实验光信号和电信号在纳秒级范围内能实现同步响应。研究结果证实了LiNbO3光开关在纳秒级范围内的可行性,并为LiNbO3纳秒级光开关的制作提供了理论和实验依据。

关键词: 光电子学, 纳秒, LiNbO3, 光开关

Abstract:

LiNbO3 crystal has been widely used as high precision and high-speed switching shutters because of its features of wide wave band, fast response, non-easy deliquescence and so on. In order to expand exposure time of optical switch of LiNbO3 to nanosecond field so as to make up defects of extant high-speed optical switches, this paper has explained theoretical principles of LiNbO3 as a optical switch; optimized its aspect ratio for multi-band lights and verified feasibility LiNbO3 of it as a nanosecond optical switch. Experimental half-wave voltages match theoretical values well. Experimental results also show that optical signal has synchronous response to electric signal. The result of study has verified feasibility of LiNbO3 as a nanosecond optical switch and has provided theoretical and experimental foundations for the manufacturing of this optical switch.

Key words: optoelectronics, nanosecond, LiNbO3, optical switch