红外与激光工程, 2020, 49 (12): 20201058, 网络出版: 2021-01-14
极低时间抖动的飞秒激光技术(特邀) 下载: 697次
Ultra-low timing jitter femtosecond laser technology (Invited)
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。
Abstract
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.
皮一涵, 王春泽, 宋有建, 胡明列. 极低时间抖动的飞秒激光技术(特邀)[J]. 红外与激光工程, 2020, 49(12): 20201058. Yihan Pi, Chunze Wang, Youjian Song, Minglie Hu. Ultra-low timing jitter femtosecond laser technology (Invited)[J]. Infrared and Laser Engineering, 2020, 49(12): 20201058.