极低时间抖动的飞秒激光技术(特邀)  

Ultra-low timing jitter femtosecond laser technology(Invited)

作　　者：皮一涵 王春泽 宋有建[1] 胡明列[1] Pi Yihan;Wang Chunze;Song Youjian;Hu Minglie(Key Laboratory of Opto-electronic Information Science and Technology of Ministry of Education,School of Precision Instruments and Opto-electronics Engineering,Tianjin University,Tianjin 300072,China)

机构地区：[1]天津大学精密仪器与光电子工程学院光电信息技术教育部重点实验室,天津300072

出　　处：《红外与激光工程》2020年第12期88-100,共13页Infrared and Laser Engineering

基　　金：国家自然科学基金(61675150,61827821,61535009);区域光纤通信网与新型光通信系统国家重点实验室开放课题(2020GZKF011);天津市自然科学基金(18JCYBJC16900)。

摘　　要：飞秒激光器的时间抖动(或定时抖动)是指其输出脉冲的时域位置相对于理想周期信号的短期随机偏差。在毫秒量级的时间尺度上,飞秒激光器的脉冲序列具有严格的一致性,其定时抖动甚至低至阿秒量级。飞秒激光器的这种独特性质及其支持的前沿应用构成了"阿秒时间精度的超快光子学"这一全新的超快研究分支。文中回顾了近年来飞秒激光器定时抖动研究进展、高时间分辨率的定时抖动测量技术、以及不同类型的飞秒激光源能够达到的最低抖动水平。最后介绍了低抖动飞秒激光器在大科学装置同步、高速模数转换、绝对测距、相干脉冲合成等领域的应用。The time jitter of a femtosecond laser is the short-term deviation of the optical pulse position relative to its ideal equally spaced pulse position. Femtosecond lasers emit uniformly spaced ultrashort pulse train. The quantum-noise-limited timing jitter can be as low as few tens of attoseconds in millisecond time scale. This unique property and its advanced applications constitute a new branch of ultrafast research, "Attosecond precision ultrafast photonics". In this paper, the recent advances in femtosecond laser timing jitter research, high-precision timing jitter characterization methods, and the ultralow timing jitter that can be achieved by different kinds of femtosecond laser sources were reviewed. Finally, the application of low-jitter femtosecond lasers in the fields of synchronization of large-scale scientific instruments, high-speed analog-to-digital conversion, absolute ranging technology and coherent beam combination are introduced.

关 键 词：激光光学 飞秒激光 定时抖动 锁模激光器 

分 类 号：TN248[电子电信—物理电子学]