title: High-energy large-aperture Ti:sapphire amplifier for 5 PW laser pulses.
abstract: We report on the generation of 192.3 J centered at 800 nm wavelength from a chirped-pulse amplification (CPA) Ti:sapphire laser system. The experimental results demonstrate that parasitic lasing can be suppressed successfully in the final amplifier based on a Ti:sapphire crystal of 150 mm in diameter. An over 50% pump-to-signal conversion efficiency was measured for the final amplifier by optimizing the time delay of two pump pulses and enhancing the injected seed energy. With 72% compressor throughput efficiency and 27 fs long compressed pulse duration obtained at a lower energy level, this laser could potentially support a compressed laser pulse of 5.13 PW peak power. The experimental results represent notable progress regarding the CPA laser.
authors.forename: Yuxi
authors.initials: Y
authors.lastname: Chu
authors.forename: Zebiao
authors.initials: Z
authors.lastname: Gan
authors.forename: Xiaoyan
authors.initials: X
authors.lastname: Liang
authors.forename: Lianghong
authors.initials: L
authors.lastname: Yu
authors.forename: Xiaoming
authors.initials: X
authors.lastname: Lu
authors.forename: Cheng
authors.initials: C
authors.lastname: Wang
authors.forename: Xinliang
authors.initials: X
authors.lastname: Wang
authors.forename: Lu
authors.initials: L
authors.lastname: Xu
authors.forename: Haihe
authors.initials: H
authors.lastname: Lu
authors.forename: Dingjun
authors.initials: D
authors.lastname: Yin
authors.forename: Yuxin
authors.initials: Y
authors.lastname: Leng
authors.forename: Ruxin
authors.initials: R
authors.lastname: Li
authors.forename: Zhizhan
authors.initials: Z
authors.lastname: Xu