• Infrared and Laser Engineering
  • Vol. 49, Issue 12, 20201080 (2020)
Yanhui Ji1, Yang He2, Haohua Wan1, Junjie Sun2, and Fei Chen2
Author Affiliations
  • 1State Key Laboratory of Laser Interaction with Matter, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
  • 2State Key Laboratory of Laser Interaction with Matter, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
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    DOI: 10.3788/IRLA20201080 Cite this Article
    Yanhui Ji, Yang He, Haohua Wan, Junjie Sun, Fei Chen. Research progress on the high power flowing-gas circulation diode-pumped alkali vapor laser (Invited)[J]. Infrared and Laser Engineering, 2020, 49(12): 20201080 Copy Citation Text show less
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    Fig. 13. [in Chinese]
    AtomPump wavelength/nmLasing wavelength/nmΔE/cm−1Quantum efficiency (ED1/ED2
    K766.70770.1157.70.44%
    Rb780.25794.98237.51.9%
    Cs852.35894.59554.14.7%
    Table 1.

    Reference data for different alkali lasers

    碱金属原子的相关参数

    时间研究者技术路线结论分析
    2013年Barmashenko利用简化的半解析模型,模拟激光流动以及 激光输出,研究气体流动对激光性能的影响[31-32]在高泵浦功率条件下,适当流速可缓解温度的升高;并且 流速较大时,高能态激发以及电离产生较小影响。(见图5
    2013年Barmashenko检验使用高摩尔热容和大弛豫速率常数的缓冲 气体对循环流动型DPAL输出功率的影响[31-32]相比于乙烷(C2H6),用丙烷(C3H8作为缓冲气体可实现更高功率激光输出。
    2014年Waichman利用3D-CFD模型,分析垂直于泵浦和激光 的横向气体流动方式对激光性能影响[44]发现横向流动方式可明显改善光束质量。 使高泵浦功率下的输出功率提高30%。
    2017年Eyal Yacoby利用3D-CFD动力学模型对不同泵浦方式的流动K蒸汽 DPAL(K-DPAL)性能以及光束质量进行分析[45-46]输出功率几乎不受泵浦方式的影响,但是 输出激光光束的空间强度分布取决于泵浦方式。
    Table 2.

    Barmashenko's group on theoretical study of flowing alkali metal vapor lasers

    Barmashenko课题组关于流动碱金属蒸汽激光器理论研究

    Yanhui Ji, Yang He, Haohua Wan, Junjie Sun, Fei Chen. Research progress on the high power flowing-gas circulation diode-pumped alkali vapor laser (Invited)[J]. Infrared and Laser Engineering, 2020, 49(12): 20201080
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