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用快速电光偏转器对激光脉冲削波
Pulse Chopping by Fast-response Electro-optic Defletors
【摘要】 介绍了用快速电光偏转器实现激光脉冲剂波的原理.用该方法可以轻易获得很大范围以内所需任意宽度的激光脉冲.理论上讨论了激光焦斑、调制小孔大小、扫描速度和激光脉冲宽度的关系;并在实验上用φ0.36的小孔从20ns的调Q激光脉冲削波,获得了前沿140ps.脉冲宽度为280ps的窄脉冲。
【Abstract】 This paper introduces the principles of pulse chopping with fast-response electrooptic deflectors. Laser pulses with a wide range of desirable pulse-width can be obtainedeasily using this method. Dependence of pulse-width upon light beam focus spot, size ofchopping hole and scan velocity is discussed theoretically.Chopped from a Q- switch singlelongitudinal mode pulse with 20 ns pulse-width by using a φ0. 36 chopping hole, a short lightPulse with a pulse-width 280 ps and rise-edge 140 ps is realized experimentally.
【基金】 “神光”升级课题
- 【文献出处】 中国激光 ,CHINESE JOURNAL OF LASERS , 编辑部邮箱 ,1996年09期
- 【分类号】TN24
- 【被引频次】11
- 【下载频次】134