惯性约束核聚变激光驱动器多路光束时间同步测试方法  

Multi-Beams Time-Synchronization Measurement for Intertial Confinement Fusion Laser Facility

作　　者：张波[1] 彭志涛[1] 吕嘉坤 孙志红[1] 董军[1] 卢宗贵[1] 

机构地区：[1]中国工程物理研究院激光聚变研究中心,四川绵阳621900

出　　处：《中国激光》2016年第2期196-200,共5页Chinese Journal of Lasers

基　　金：国家自然科学基金(61377102)

摘　　要：提出了一种测量惯性约束核聚变(ICF)激光驱动器靶点处多路光束时间同步的方法。首先测量参考光路脉冲到达靶点与到达基准点之间的时间间隔,然后测量待测光路脉冲到达靶点与参考光路脉冲到达基准点之间的时间间隔,计算得出待测光路脉冲与参考光路脉冲到达同一靶点的同步时间差。分析结果表明多束激光束间时间同步测量精度小于25.2 ps,测试技术和方法具有简单高效的特点,已成功应用于ICF激光驱动器多路强激光时间同步精密诊断。A method measuring timing synchronization of multi-beams laser for intertial confinement fusion （ICF） facility is proposed. Firstly, the time interval of reference laser beam arriving criterion point and target point is measured. Secondly, the time interval of reference laser beam arriving criterion point and measured laser beam arriving target point is measured, the D-value between these two intervals stand for the time synchronization difference between reference beam and measured beam arriving the same target point. The analysis shows that the precision of this method is 25.2 ps.The measurement technology is simple and efficient, and it has been successfully applied in the synchronization measurement of ICF laser facility.

关 键 词：测量 时间同步 靶点 示波器 光电管 多束激光 

分 类 号：TN247[电子电信—物理电子学]