电光调Q双脉冲Nd:YAG激光器的研究  

Research on Electro-Optic Q-Switched Double-Pulse Nd∶YAG Laser

作　　者：赵海栋 于佳琦 代守军 何建国 黄旻[3,4,5] 温勤 李兵 贺然 葛文琦 常秋英 Zhao Haidong;Yu Jiaqi;Dai Shoujun;He Jianguo;Huang Min;Wen Qin;Li Bing;He Ran;Ge Wenqi;Chang Qiuying(School of Mechanical,Electronic and Control Engineering,Beijing Jiaotong University,Beijing 100091,China;School of Physical Science and Engineering,Beijing Jiaotong University,Beijing 100091,China;Key Laboratory of Computational Optical Imaging Technology,Chinese Academy of Sciences,Beijing 100094,China;Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 101408,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]北京交通大学机械与电子控制工程学院,北京100091 [2]北京交通大学物理科学与工程学院,北京100091 [3]中国科学院计算光学成像技术重点实验室,北京100094 [4]中国科学院空天信息创新研究院,北京101408 [5]中国科学院大学,北京100049

出　　处：《激光与光电子学进展》2024年第15期223-229,共7页Laser & Optoelectronics Progress

基　　金：中国科学院科研仪器设备研制项目(YJKYYQ20200047,YJKYYQ20210028)。

摘　　要：提出了可以实现脉冲延迟可调、能量比可调的共线纳秒双脉冲激光器新方法,并搭建了灯泵浦共线纳秒双脉冲Nd:YAG激光器进行验证。比较了单脉冲模式与双脉冲模式激光输出性能差异,并研究了施加在电光晶体上的电压对脉冲能量以及时间波形的影响。两束脉冲激光之间的时间间隔控制在100 ns~10μs之间,可以满足大多数双脉冲激光器的需求。两束脉冲激光共享一个谐振腔,因此其具有自身同轴性,该方法是获得共线纳秒双脉冲激光器的理想方法,并且可以扩展到其他激光器。A method for collinear nanosecond double-pulse lasers with an adjustable pulse delay and energy ratio is proposed.Lamp-pumped collinear nanosecond double-pulse Nd∶YAG lasers were built for verification.The performances of single-pulse mode and double-pulse mode laser outputs were compared,and the influence of voltage applied to the electro-optical crystal on the pulse energy and time waveform was studied.The time interval between the two pulsed lasers can be controlled from 100 ns to 10μs,hence satisfying the requirements of the majority of double-pulse lasers.Double-pulse lasers share a resonant cavity and therefore exhibit inherent coaxiality,which is ideal for obtaining collinear double-pulse lasers and can be extrapolated to other lasers.

关 键 词：激光技术 ND:YAG激光器 双脉冲激光 KD*P调Q 

分 类 号：TN248.1[电子电信—物理电子学]