Generation of 601 fs pulse from an 8 kHz Nd:YVO_(4) picosecond laser by multi-pass-cell spectral broadening  

作　　者：Jiajun Song Zhaohua Wang Xianzhi Wang Renchong Lü Hao Teng Jiangfeng Zhu Zhiyi Wei 宋贾俊;王兆华;王羡之;吕仁冲;滕浩;朱江峰;魏志义(Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China;School of Physics and Optoelectronic Engineering,Xidian University,Xi'an 710071,China;Songshan Lake Materials Laboratory,Dongguan 523808,China;CAS Center for Excellence in Ultra-intense Laser Science,Shanghai 201800,China)

机构地区：[1]Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China [2]University of Chinese Academy of Sciences,Beijing 1000A9,China [3]School of Physics and Optoelectronic Engineering,Xidian University,Xi'an 710071,China [4]Songshan Lake Materials Laboratory,Dongguan 523808,China [5]CAS Center for Excellence in Ultra-intense Laser Science,Shanghai 201800,China

出　　处：《Chinese Optics Letters》2021年第9期116-120,共5页中国光学快报（英文版）

基　　金：supported by the Strategic Priority Research Program of CAS (No. XDB16030200);the National Natural Science Foundation of China (Nos. 91850209 and 11774410);the Key-Area Research and Development Program of Guangdong Province (No. 2018B090904003)

摘　　要：We demonstrate nonlinear pulse compression of an 8 k Hz Nd:YVO4 picosecond laser using the multi-pass-cell(MPC) technique with fused silica as the nonlinear medium. The pulse duration is compressed from 12.5 ps to 601 fs, corresponding to a pulse shortening factor of 20.8. The output pulse energy is 154 μJ with an efficiency of 74.5%. To the best of our knowledge,this is the highest pulse compression ratio achieved in a single-stage MPC with bulk material as the nonlinear medium. The laser power stability and the beam quality(M2) before and after the MPC are also experimentally studied. Both the laser power stability and the beam quality are barely deteriorated by the MPC device.

关 键 词：multi-pass cell Nd:W04 compression ratio femtosecond laser 

分 类 号：TN248[电子电信—物理电子学]