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10 J operation of a conductive-cooled Yb:YAG active-mirror amplifier and prospects for 100 Hz operation

机译:10 J操作导电冷却YB:YAG主镜放大器和100 Hz操作的前景

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摘要

We report, to the best of our knowledge, the highest power conductive-cooled active-mirror amplifier (CcAMA) using Yb:YAG with a pulse energy of 10 J. By using four liquid-nitrogen circulating cooled laser heads, we achieved a repetition rate, pulse energy, and average power of 33.3 Hz, 9.3 J, and 310 W, respectively. The problem of wavefront distortion, which is difficult to solve with a large-aperture active-mirror laser, is suppressed by using reinforcing materials with the same thermal expansion coefficient. We have confirmed that the wavefront distortion is small (0.15 lambda P-V per head) at 100 Hz operation, which paves the way for 100 Hz operation with the CcAMA concept. (C) 2021 Optical Society of America
机译:据我们所知,我们报道了使用Yb:YAG的功率最高的传导冷却有源镜放大器(CcAMA),脉冲能量为10 J。通过使用四个液氮循环冷却激光头,我们分别获得了33.3 Hz、9.3 J和310 W的重复率、脉冲能量和平均功率。采用具有相同热膨胀系数的增强材料,抑制了大口径有源镜激光器难以解决的波前畸变问题。我们已经证实,在100 Hz运行时,波前畸变很小(每头0.15λP-V),这为使用CcAMA概念进行100 Hz运行铺平了道路。(2021)美国光学学会

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  • 来源
    《Optics Letters》 |2021年第3期|共4页
  • 作者单位

    Osaka Univ Inst Laser Engn 2-6 Yamadaoka Suita Osaka 5650871 Japan;

    Osaka Univ Inst Laser Engn 2-6 Yamadaoka Suita Osaka 5650871 Japan;

    Osaka Univ Inst Laser Engn 2-6 Yamadaoka Suita Osaka 5650871 Japan;

    Osaka Univ Inst Laser Engn 2-6 Yamadaoka Suita Osaka 5650871 Japan;

    Osaka Univ Inst Laser Engn 2-6 Yamadaoka Suita Osaka 5650871 Japan;

    Inst Laser Technol Nishi Ku 1-8-4 Utsubo Honmachi Osaka 5500004 Japan;

    Osaka Univ Inst Laser Engn 2-6 Yamadaoka Suita Osaka 5650871 Japan;

    Osaka Univ Inst Laser Engn 2-6 Yamadaoka Suita Osaka 5650871 Japan;

    Osaka Univ Inst Laser Engn 2-6 Yamadaoka Suita Osaka 5650871 Japan;

    Osaka Univ Inst Laser Engn 2-6 Yamadaoka Suita Osaka 5650871 Japan;

    Osaka Univ Inst Laser Engn 2-6 Yamadaoka Suita Osaka 5650871 Japan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
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