2kHz重复频率分立路径Nd∶YAG Innoslab激光放大器  

Discrete Path Nd∶YAG Innoslab Laser Amplifier Operating at 2 kHz Repetition Rate

作　　者：陈忆兰 刘继桥 王明建[3] 陈晓[3] 朱小磊 Chen Yilan;Liu Jiqiao;Wang Mingjian;Chen Xiao;Zhu Xiaolei(Key Laboratory of Space Laser Communication and Detection Technology,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China;Laboratory of Space Laser Engineering,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China)

机构地区：[1]中国科学院上海光学精密机械研究所空间激光传输与探测技术重点实验室,上海201800 [2]中国科学院大学材料与光电研究中心,北京100049 [3]中国科学院上海光学精密机械研究所航天激光工程部,上海201800

出　　处：《激光与光电子学进展》2024年第9期368-372,共5页Laser & Optoelectronics Progress

基　　金：星载高功率臭氧探测激光雷达研制项目(20Q61502F1);上海市科学技术委员会集成电路科技支撑专项项目(20501120400)。

摘　　要：提出一种结构紧凑的分立路径Nd∶YAG Innoslab激光新型八程放大器系统。种子光源为采用Nd∶YVO4晶体作为增益介质的电光调Q激光振荡器,输出平均功率2.7W的种子光注入到Innoslab激光放大器中进行放大。当激光的输出重复频率为2kHz时,最高放大激光功率达到13W,脉冲宽度约为15.5ns,此时提取效率达到14.6%。实验测得光束质量因子在x和y方向上分别小于1.7和1.5。基于分立路径的激光放大器结构,在最大泵浦功率下依然没有观察到寄生振荡及自发辐射放大现象。A compact,discrete path Nd:YAG Innoslab laser amplifier system with novel eightpass arrangement is developed.An electrooptic Qswitched oscillator using Nd∶YVO4 crystal as gain medium is used as the seed laser.With a seed laser power of 2.7 W at a repetition rate of 2 kHz,the amplified laser power of more than 13 W is achieved successfully with the pulse width of 15.5 ns,and the corresponding extraction efficiency is 14.6%.The experimentally measured laser beam quality factors are less than 1.7 and 1.5 in the x and y directions,respectively.Selflasing and amplified spontaneous emission(ASE)are not observed at the maximum pump power with discretepath laser amplifier configuration.

关 键 词：激光器与激光光学 Innoslab激光放大器 Nd∶YAG 分立路径 

分 类 号：TN243[电子电信—物理电子学]