载波包络相位稳定的少周期激光系统，可产生超过100瓦、1毫焦、小于2个周期的脉冲。

Carrier-envelope phase stable few-cycle laser system delivering more than 100 W, 1 mJ, sub-2-cycle pulses.

作者信息

Hädrich Steffen, Shestaev Evgeny, Tschernajew Maxim, Stutzki Fabian, Walther Nico, Just Florian, Kienel Marco, Seres Imre, Jójárt Péter, Bengery Zsolt, Gilicze Barnabás, Várallyay Zoltán, Börzsönyi Ádám, Müller Michael, Grebing Christian, Klenke Arno, Hoff Dominik, Paulus Gerhard G, Eidam Tino, Limpert Jens

出版信息

Opt Lett. 2022 Mar 15;47(6):1537-1540. doi: 10.1364/OL.450991.

DOI:10.1364/OL.450991

PMID:35290358

Abstract

Two-stage multipass-cell compression of a fiber-chirped-pulse amplifier system to the few-cycle regime is presented. The output delivers a sub-2-cycle (5.8 fs), 107 W average power, 1.07 mJ pulses at 100 kHz centered at 1030 nm with excellent spatial beam quality (M= 1.1, Strehl ratio S = 0.98), pointing stability (2.3 µrad), and superior long-term average power stability of 0.1% STD over more than 8 hours. This is combined with a carrier-envelope phase stability of 360 mrad in the frequency range from 10 Hz to 50 kHz, i.e., measured on a single-shot basis. This unique system will serve as an HR1 laser for the Extreme Light Infrastructure Attosecond Light Pulse Source research facility to enable high repetition rate isolated attosecond pulse generation.

摘要

介绍了一种用于光纤啁啾脉冲放大器系统的两级多程池压缩技术，可将其压缩至少周期状态。输出的是中心波长为1030nm、重复频率为100kHz的亚2周期（5.8 fs）、平均功率为107W、脉冲能量为1.07mJ的脉冲，具有优异的空间光束质量（M=1.1，斯特列尔比S=0.98）、指向稳定性（2.3µrad）以及在超过8小时内优于0.1% STD的长期平均功率稳定性。这还结合了在10Hz至50kHz频率范围内360mrad的载波包络相位稳定性，即基于单脉冲测量。这个独特的系统将作为高重复率阿秒光源研究设施的HR1激光器，用于产生高重复率孤立阿秒脉冲。