High-energy large-aperture Ti:sapphire amplifier for 5 PW laser pulses
High-energy large-aperture Ti:sapphire amplifier for 5 PW laser pulses
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DOI：
10.1364/ol.40.005011
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发表时间：
2015-11-01
期刊：
影响因子：
3.6
通讯作者：
Xu, Zhizhan
中科院分区：
文献类型：
--
作者：
Chu, Yuxi;Gan, Zebiao;Xu, Zhizhan
报道了用啁啾脉冲放大钛宝石激光系统产生192.3焦耳激光的实验结果。实验结果表明，利用直径150 mm的掺钛蓝宝石晶体制作的最终放大器能够成功地抑制寄生激光。通过优化两个泵浦脉冲的时延和提高注入种子能量，最终放大器的泵浦-信号转换效率超过50%。该激光器在较低的能量水平下获得了72%的压缩效率和27fs的压缩脉冲宽度，有可能支持峰值功率为5.13pW的压缩激光脉冲。实验结果表明，CPA激光器取得了显著的进展。(C)2015年美国光学学会
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. (C) 2015 Optical Society of America