一级放大激光时域特性影响因素及优化  

Influence factors and optimization of time-domain characteristics of first-order amplification laser

作　　者：张鹏[1] 张雷[1] 费红阳 吕栋栋 丁蕴丰 ZHANG Peng;ZHANG Lei;FEI Hongyang;LV Dongdong;DING Yunfeng(NUERC of Space Optoelectronics Technology,Changchun University of Science and Technology,Changchun 130022,China;College of Physics and Electronic Engineering,Hainan Normal University,Haikou 570100,China)

机构地区：[1]长春理工大学空间光电技术国家地方联合工程研究中心,长春130022 [2]海南师范大学物理与电子工程学院,海口570100

出　　处：《激光杂志》2021年第1期45-48,共4页Laser Journal

基　　金：国家自然科学基金重点支持项目(No.91438204);吉林省教育厅“十三五”科学技术项目(No.JJKH20190581KJ)。

摘　　要：基于一级放大脉冲Nd3+:YAG激光器实验系统,通过实验测量手段,开展了级间泵浦延时、放大增益系数与电光调Q加压延时对激光单脉冲能量影响规律的测量研究与数据分析,分别从静态和动态2种条件下,测量了级间泵浦延时、脉冲能量、脉冲宽度、动、静态放大增益系数、电光调Q加压延时等时域参数随放大电压的变化规律曲线。研究表明,在谐振电压不变的情况下,随着放大电压的增加,级间泵浦延时逐渐减小,脉冲能量逐渐增大,脉冲宽度逐渐减小,动、静态放大增益系数逐渐增加,电光调Q加压延时围绕恒定值上下波动。此外,根据上述研究结果,给出该系统最佳级间泵浦延时为15μs、最佳电光调Q加压延时为189μs,静态最佳放大增益系数为4.75,动态最佳放大增益系数为2.60。Based on the experimental system of primary amplification pulse Nd3+:YAG laser,the inter-stage pump delay,study the amplification gain coefficient and the electro-optic Q-switching pressurization delay effects on the laser single pulse energy are carried out by means of experimental measurement and data analysis.The inter-stage pump delay,the pulse energy,the pulse width,the dynamic and the static amplification are measured under the static and dynamic conditions respectively time domain parameters,such as large gain coefficient and electro-optic Q-switching delay which are changed with the amplification voltage.The results show that,with the increase of the amplification voltage,the inter-stage pump delay decreases,the pulse energy increases,the pulse width decreases,the dynamic and static amplification gain coefficients increase,and the electro-optic Q-switching voltage delay fluctuates around the constant value.In addition,according to the above research results,the optimal inter-stage pump delay is 15μs,the optimal electro-optic Q-switching and calendering time is 189μs,the static optimal amplification gain coefficient is 4.75,and the dynamic optimal amplification gain coefficient is 2.60.

关 键 词：激光光学 高功率固体激光 啁啾脉冲放大 纳秒脉宽 时域关系 

分 类 号：TN248.1[电子电信—物理电子学]