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12 kW narrow-linewidth Yb-Raman fiber amplifier

机译:12 KW窄线宽YB-拉曼光纤放大器

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摘要

In this Letter, we report a high-power narrow-linewidth Yb-Raman fiber amplifier with a high second-order Raman threshold and high intensity stability. By employing two temporally stable seed lasers, over 2 kW output power at 1120 nm is achieved at a pump power of 2.6 kW with an optical-to-optical efficiency of 76.3%. The 3 dB linewidth of the 1120 nm Raman-signal laser varies slightly from 0.41 nm to 0.53 nm, and the power ratio of the second-order Raman Stokes light is only about -46.3 dB at the output power of 2 kW. The results further confirm that the technique of employing temporally stable seed lasers is superior to the power scaling of narrow-linewidth Yb-Raman fiber amplifiers. To the best of our knowledge, it is the first demonstration of an over 2 kW narrow-linewidth fiber laser operating at 1120 nm. (C) 2021 Optical Society of America
机译:在这封信中,我们报道了一种具有高二阶拉曼阈值和高强度稳定性的高功率窄线宽Yb拉曼光纤放大器。通过使用两个时间稳定的种子激光器,在2.6kw的泵浦功率下,在1120nm处获得了超过2kw的输出功率,光-光效率为76.3%。1120nm拉曼信号激光器的3dB线宽在0.41nm到0.53nm之间略有变化,在输出功率为2kW时,二阶拉曼斯托克斯光的功率比仅为-46.3dB。结果进一步证实,采用时间稳定种子激光器的技术优于窄线宽Yb拉曼光纤放大器的功率缩放。据我们所知,这是首次演示在1120 nm处工作的2千瓦以上窄线宽光纤激光器。(2021)美国光学学会

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  • 来源
    《Optics Letters》 |2021年第10期|共4页
  • 作者单位

    Natl Univ Def Technol Coll Adv Interdisciplinary Studies Changsha 410073 Hunan Peoples R China;

    Natl Univ Def Technol Coll Adv Interdisciplinary Studies Changsha 410073 Hunan Peoples R China;

    Natl Univ Def Technol Coll Adv Interdisciplinary Studies Changsha 410073 Hunan Peoples R China;

    Natl Univ Def Technol Coll Adv Interdisciplinary Studies Changsha 410073 Hunan Peoples R China;

    Natl Univ Def Technol Coll Adv Interdisciplinary Studies Changsha 410073 Hunan Peoples R China;

    Natl Univ Def Technol Coll Adv Interdisciplinary Studies Changsha 410073 Hunan Peoples R China;

    Natl Univ Def Technol Coll Adv Interdisciplinary Studies Changsha 410073 Hunan Peoples R China;

    Natl Univ Def Technol Coll Adv Interdisciplinary Studies Changsha 410073 Hunan Peoples R China;

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

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