飞秒激光脉冲序列互相关实验及结果分析  

Experimental research on cross-correlation between pulses of femtosecond laser sequence

作　　者：师博[1] 徐金强[1] 孙大睿[1] 相新蕾[1] 

机构地区：[1]中国科学院高能物理研究所,北京100049

出　　处：《强激光与粒子束》2009年第8期1121-1124,共4页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(10575116;60471056);中国科学院高能物理研究所青年创新基金课题资助

摘　　要：利用搭建的大臂长差相关仪,进行了飞秒激光脉冲序列间脉冲的互相关实验。实验结果表明:飞秒脉冲间互相关具有飞秒脉冲自相关的干涉相关图样。初步互相关实验和数据处理表明:利用飞秒脉冲固有的间隔和超短的脉冲宽度在μm量级上能精确标定大型光学谐振腔的长度;大臂长差飞秒脉冲相关技术,在未来加速器新光源装置中,可以用于稳定定时信号传输时间,更直接用于大型光学谐振腔的长度确定。Theoretical analyses have been done on the cross correlation between pulses of the femtosecond laser sequence. Experimental results are also derived using a cross-correlation setup, which can be switched between intensity cross-correlation mode and interferometric cross-correlation mode. The results show that the pattern of adjacent pulses cross-correlation is similar to that of auto-correlation. In the future, the method can be used in advanced light sources based electron accelerators to stabilize signals and to locate the cavity mirror precisely.

关 键 词：飞秒激光 飞秒脉冲序列 互相关 强度相关 干涉相关 新光源 

分 类 号：O437[机械工程—光学工程]