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Chinese Journal of Lasers, Volume. 44, Issue 9, 901006(2017)

Propagation and Prejudgement Technique of Hot Images in High Power Laser System

Yang Aihua1,2、*, Liu Dean1, Gao Yaru1,2, Miao Jie1,2, and Zhu Jianqiang1
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  • 1[in Chinese]
  • 2[in Chinese]
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    AbstractGet PDF(in Chinese)
    Figures&Tables (9)
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    References (22)
    Cited By (4)
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    Figures & Tables(9)
    Schematic diagram of formation process of hot images in cascaded nonlinear medium

    Fig. 1. Schematic diagram of formation process of hot images in cascaded nonlinear medium

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    Distribution of hot images in cascaded medium. (a) Two medium plates; (b) three medium plates; (c) four medium plates

    Fig. 2. Distribution of hot images in cascaded medium. (a) Two medium plates; (b) three medium plates; (c) four medium plates

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    Peak intensities corresponding to different damage radii

    Fig. 3. Peak intensities corresponding to different damage radii

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    Flow chart of GDM algorithm with high signal-noise ratio

    Fig. 4. Flow chart of GDM algorithm with high signal-noise ratio

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    Diffraction beam path of the equivalent damage point simulated by liquid crystal SLM

    Fig. 5. Diffraction beam path of the equivalent damage point simulated by liquid crystal SLM

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    (a) Diffraction rings; (b) calibrated diffraction ring center; (c) fitting result

    Fig. 6. (a) Diffraction rings; (b) calibrated diffraction ring center; (c) fitting result

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    (a)-(c) Diffraction rings; (d)-(f) calibrated diffraction ring centers

    Fig. 7. (a)-(c) Diffraction rings; (d)-(f) calibrated diffraction ring centers

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    Fitting results. (a) C1; (b) C2; (c) C'3; (d) C'4

    Fig. 8. Fitting results. (a) C1; (b) C2; (c) C'3; (d) C'4

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    • Table 1. Inversion results and precision analysis of damage point on the basis of diffraction rings

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      Table 1. Inversion results and precision analysis of damage point on the basis of diffraction rings

      ExperimentNumerical inversionMatching precisionQI
      Diffraction length /mmDamage radius /μmDiffraction length /mmDamage radius /μmDiffraction lengthDamage radius
      80808080100%100%97.24%
      8012080128100%93.3%98.91%
      8016080160100%100%99.10%
      3008030080100%100%97.57%
      300120300144100%80%99.28%
      300160300144100%90%99.24%
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    Yang Aihua, Liu Dean, Gao Yaru, Miao Jie, Zhu Jianqiang. Propagation and Prejudgement Technique of Hot Images in High Power Laser System[J]. Chinese Journal of Lasers, 2017, 44(9): 901006

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    Paper Information

    Category: laser devices and laser physics

    Received: Mar. 22, 2017

    Accepted: --

    Published Online: Sep. 7, 2017

    The Author Email: Aihua Yang (1442650631@qq.com)

    DOI:10.3788/CJL201744.0901006

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology