Efficient dual-stage all-solid-state post-compression for 100W level ultrafast lasers  

作　　者：Zichen Gao Jie Guo Yongxi Gao Yuguang Huang Zhihua Tu Xiaoyan Liang 

机构地区：[1]State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai,China [2]Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing,China [3]School of Physics Science and Engineering,Tongji University,Shanghai,China

出　　处：《High Power Laser Science and Engineering》2024年第4期65-71,共7页高功率激光科学与工程（英文版）

基　　金：supported by the National Natural Science Foundation of China(NSFC)(No.62005298);the Program of Shanghai Academic/Technology Research Leader(No.20SR014501);Zhangjiang Laboratory。

摘　　要：We demonstrate efficient and economical all-solid-state post-compression based on dual-stage periodically placed thin fused silica plates driven by a more than 100 W ytterbium-doped yttrium aluminum garnet Innoslab amplifier seeded by a fiber frontend.Not only is a more than eight-fold pulse compression with 94%transmission achieved,but also the pulse quality and spatial mode are improved,which can be attributed to the compensation for the residual high-order dispersion and the spatial mode self-cleaning effect during the nonlinear process.It enables a high-power ultrafast laser source with 64 fs pulse duration,96 W average power at 175 k Hz repetition rates and good spatiotemporal quality.These results highlight that this all-solid-state post-compression can overcome the bandwidth limitation of Yb-based lasers with exceptional efficiency and mitigate the spatiotemporal degradation originating from the Innoslab amplifier and fiber frontend,which provides an efficient and economical complement for the Innoslab laser system and facilitates this robust and compact combination as a promising scheme for high-quality higher-power few-cycle laser generation.

关 键 词：high-power ultrafast source post-compression self-focusing effect 

分 类 号：TN248[电子电信—物理电子学]