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Automated alignment research on off-axis eight-pass laser amplifier

Chen Zhifei Yao Ke Fan Chen Tang Jun Lǚ Mengjie Lu Zhenhua Gao Song Xie Xudong Fu Xuejun Fan Mengqiu Zheng Kuixing Chen Bo Peng Zhitao Feng Bin

陈知非, 姚轲, 范琛, 等. 离轴八程放大器自动准直技术研究[J]. 强激光与粒子束, 2021, 33: 091004. doi: 10.11884/HPLPB202133.210207
引用本文: 陈知非, 姚轲, 范琛, 等. 离轴八程放大器自动准直技术研究[J]. 强激光与粒子束, 2021, 33: 091004. doi: 10.11884/HPLPB202133.210207
Chen Zhifei, Yao Ke, Fan Chen, et al. Automated alignment research on off-axis eight-pass laser amplifier[J]. High Power Laser and Particle Beams, 2021, 33: 091004. doi: 10.11884/HPLPB202133.210207
Citation: Chen Zhifei, Yao Ke, Fan Chen, et al. Automated alignment research on off-axis eight-pass laser amplifier[J]. High Power Laser and Particle Beams, 2021, 33: 091004. doi: 10.11884/HPLPB202133.210207

离轴八程放大器自动准直技术研究

doi: 10.11884/HPLPB202133.210207
详细信息
  • 中图分类号: TN241

Automated alignment research on off-axis eight-pass laser amplifier

More Information
    Author Bio:

    Chen Zhifei (1995—), male, MSc postgraduate, engaged in High power laser solid state system control technology

    Corresponding author: Xie Xudong (1976—), male, PhD, engaged in High power laser solid state technology
  • 摘要: 展示了基于离轴八程激光放大器的闭环自动准直技术研究,该项技术旨在用自动准直系统取代手动光路准直的方式,明显提高了该构型复杂的多程激光放大器的运行效率、准直精度与其输出光束质量。该技术利用主激光照明和像传递系统实现离轴八程激光放大器中滤波器小孔空间位置的精确标定,通过边缘检测处理远场光斑得到其指向中心。基于光斑中心与基准间的差值,对特定反射镜架进行二维控制进行光束指向补正,从而实现离轴八程放大器系统的闭环自动准直。研究结果表明,实验结果契合离轴八程放大器系统对光束准直准确率与效率的要求,验证了该准直技术在离轴八程激光放大光路中应用的可行性。
  • Figure  1.  Basic mechanism of off-axis eight-pass laser amplifier

    Figure  2.  Off-axis eight-pass laser path

    Figure  3.  Alignment reference design

    Figure  4.  Progress of edge detection

    Figure  5.  Closed loop automated alignment system

    Figure  6.  Alignment progress

    Figure  7.  Alignment reference installation

    Figure  8.  Far-field beam pointing progress

    Figure  9.  Near-field laser beam quality

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出版历程
  • 收稿日期:  2021-05-27
  • 修回日期:  2021-08-20
  • 网络出版日期:  2021-09-10
  • 刊出日期:  2021-09-24

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