中国激光, 2011, 38 (3): 0302003, 网络出版: 2011-02-21
拉曼-纳斯衍射声光Q开关的实验研究
Acoustooptic Q-Switch Based on Raman-Nath Diffraction
衍射 声光Q开关 最佳声光相互作用长度 调制Nd:YAG/KTP激光 diffraction acoustooptic Q-switch optimum interaction length modulating Nd:YAG/KTP laser
摘要
实验研究了拉曼-纳斯(R-N)衍射的声光相互作用长度与声波光波参数之间的关系，确定了最佳声光相互作用长度。在此基础上，分别设计以水和TeO2晶体为声光介质的R-N衍射Q开关器件。测量了器件的衍射效率、衍射角和插入损耗等参数。应用TeO2晶体开关器件调制长脉冲Nd:YAG/KTP激光器，当重复频率为10 kHz时得到了脉宽约为200 ns的绿激光输出。
Abstract
A series of experiments on the interaction length between the sound and the light with Raman-Nath diffraction is reported. Then the optimum interaction length at certain sound frequency is defined. Based on those results, the devices of acoustooptic Q-switch, made of H2O or TeO2 as the medium, in terms of Raman-Nath diffraction are respectively designed. The diffraction and the loss of the devices are tested. Finally the device made of TeO2 is employed to modulate a long pulsed Nd:YAG/KTP laser. The modulated pulse width is measured as about 200 ns at the repetition frequency of 10 kHz.
邵中兴, 姜守军, 蒋坤军, 武鹏, 顾华东, 郑陈琪, 位兵, 武晓东. 拉曼-纳斯衍射声光Q开关的实验研究[J]. 中国激光, 2011, 38(3): 0302003. Shao Zhongxing, Jiang Shoujun, Jiang Kunjun, Wu Peng, Gu Huadong, Zheng Chenqi, Wei Bing, Wu Xiaodong. Acoustooptic Q-Switch Based on Raman-Nath Diffraction[J]. Chinese Journal of Lasers, 2011, 38(3): 0302003.
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