Timing fluctuation correction for the front end of a 100-PW laser

IF 5.2 1区 物理与天体物理 Q1 OPTICS
Hongyang Li, Keyang Liu, Xinliang Wang, Xingyan Liu, Xianze Meng, Yanqi Liu, Liwei Song, Y. Leng, Ruxin Li
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引用次数: 0

Abstract

Abstract The development of high-intensity ultrafast laser facilities provides the possibility to create novel physical phenomena and matter states. The timing fluctuation of the laser pulses is crucial for pump–probe experiments, which is one of the vital means to observe the ultrafast dynamics driven by intense laser pulses. In this paper, we demonstrate the timing fluctuation characterization and control of the front end of a 100-PW laser that is composed of a high-contrast optical parametric amplifier (seed) and a 200-TW optical parametric chirped pulse amplifier (preamplifier). By combining the timing jitter measurement with a feedback system, the laser seed and preamplifier are synchronized to the reference with timing fluctuations of 1.82 and 4.48 fs, respectively. The timing system will be a key prerequisite for the stable operation of 100-PW laser facilities and provide the basis for potential pump–probe experiments performed on the laser.
100pw激光器前端定时波动校正
高强度超快激光设备的发展为创造新的物理现象和物质状态提供了可能。激光脉冲的时序波动对泵浦探测实验至关重要,是观测强激光脉冲驱动下的超快动力学的重要手段之一。本文演示了由高对比度光参量放大器(种子)和200 tw光参量啁啾脉冲放大器(前置放大器)组成的100 pw激光器前端的时序波动特性和控制。通过将定时抖动测量与反馈系统相结合,将激光种子和前置放大器同步到基准,定时波动分别为1.82和4.48 fs。该定时系统将是保证100-PW激光设备稳定运行的关键前提,并为在激光器上进行势泵浦探测实验提供基础。
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来源期刊
High Power Laser Science and Engineering
High Power Laser Science and Engineering Physics and Astronomy-Nuclear and High Energy Physics
CiteScore
7.10
自引率
4.20%
发文量
401
审稿时长
21 weeks
期刊介绍: High Power Laser Science and Engineering (HPLaser) is an international, peer-reviewed open access journal which focuses on all aspects of high power laser science and engineering. HPLaser publishes research that seeks to uncover the underlying science and engineering in the fields of high energy density physics, high power lasers, advanced laser technology and applications and laser components. Topics covered include laser-plasma interaction, ultra-intense ultra-short pulse laser interaction with matter, attosecond physics, laser design, modelling and optimization, laser amplifiers, nonlinear optics, laser engineering, optical materials, optical devices, fiber lasers, diode-pumped solid state lasers and excimer lasers.
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