High-Contrast Frontend for Petawatt-Scale Lasers Using an Optically Synchronized Picosecond Optical Parametric Chirped Pulse Amplification
Hao Xue,
Meizhi Sun,
Linjun Li,
Lijuan Qiu,
Zhantao Lu,
Xinglong Xie,
Guoli Zhang,
Xiao Liang,
Ping Zhu,
Xiangbing Zhu,
Qingwei Yang,
Ailin Guo,
Haidong Zhu,
Jun Kang,
Dongjun Zhang
Affiliations
Hao Xue
School of Physics and Electric Information, Anhui Normal University, No. 189 Jiuhuanan Road, Wuhu 241002, China
Meizhi Sun
National Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, No. 390 Qinghe Road, Jiading, Shanghai 201800, China
Linjun Li
National Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, No. 390 Qinghe Road, Jiading, Shanghai 201800, China
Lijuan Qiu
National Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, No. 390 Qinghe Road, Jiading, Shanghai 201800, China
Zhantao Lu
National Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, No. 390 Qinghe Road, Jiading, Shanghai 201800, China
Xinglong Xie
School of Physics and Electric Information, Anhui Normal University, No. 189 Jiuhuanan Road, Wuhu 241002, China
Guoli Zhang
National Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, No. 390 Qinghe Road, Jiading, Shanghai 201800, China
Xiao Liang
National Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, No. 390 Qinghe Road, Jiading, Shanghai 201800, China
Ping Zhu
National Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, No. 390 Qinghe Road, Jiading, Shanghai 201800, China
Xiangbing Zhu
School of Physics and Electric Information, Anhui Normal University, No. 189 Jiuhuanan Road, Wuhu 241002, China
Qingwei Yang
National Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, No. 390 Qinghe Road, Jiading, Shanghai 201800, China
Ailin Guo
National Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, No. 390 Qinghe Road, Jiading, Shanghai 201800, China
Haidong Zhu
National Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, No. 390 Qinghe Road, Jiading, Shanghai 201800, China
Jun Kang
National Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, No. 390 Qinghe Road, Jiading, Shanghai 201800, China
Dongjun Zhang
National Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, No. 390 Qinghe Road, Jiading, Shanghai 201800, China
We present a new scheme of picosecond optical parametric chirped pulse amplification (OPCPA) in which a Fourier-transform-limit 5.0 ps pulse is optically sheared from a single-longitudinal-mode 1064 nm CW laser. The pulse is amplified and frequency-doubled as the pump in order to maintain the pump narrow bandwidth and picosecond duration simultaneously, which is very important to ensure the high temporal contrast for an OPCPA amplifier. Combined with the cross-polarized wave generation (XPW), a compound frontend for the high-power femtosecond laser system that delivers a 1 Hz chirped pulse train is established. The experiments provide an output pulse energy of 17.1 mJ, a spectrum bandwidth 71 nm (FWHM), and a pulse duration 16.4 fs. The pulse contrast reaches 1:10−12 several picoseconds before the peak of the main pulse, which is the best value of the available measuring instruments.
