Infrared and Laser Engineering, Volume. 50, Issue 10, 20210224(2021)

Large dynamic range curvature sensing for large-aperture active-optics survey telescope

Qichang An1... Xiaoxia Wu1, Jingxu Zhang1, Hongwen Li1, and Liang Wang12,* |Show fewer author(s)
Author Affiliations
  • 1Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
  • 2School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130025, China
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    Figures & Tables(12)
    Principle diagram of curvature sensing
    Coma dominated wavefront pre-focal and post-focal light distribution
    Coma dominated wavefront retrieval accuracy (take wavefront RMS variation as the criterion)
    Schematic diagram of defocus detection
    Multiple defocusing dominant wavefront pre-focal and post-focal intensity distribution
    Multiple defocusing dominant wavefront reconstruction error accuracy (take wavefront RMS variation as the criterion)
    Schematic diagram of system low order aberration calculation
    Low order wavefront sensing based on machine learning
    Experimental device diagram of large range curvature sensing
    Multiple defocusing intensity distribution
    Intensity distribution before and after defocusing dominated wavefront
    Comparison of reconstructed low order wavefront
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    Qichang An, Xiaoxia Wu, Jingxu Zhang, Hongwen Li, Liang Wang. Large dynamic range curvature sensing for large-aperture active-optics survey telescope[J]. Infrared and Laser Engineering, 2021, 50(10): 20210224

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    Paper Information

    Category: Special issue—Advanced design and manufacturing of optical system

    Received: Apr. 4, 2021

    Accepted: --

    Published Online: Dec. 7, 2021

    The Author Email: Wang Liang (wangliang.ciomp@foxmail.com)

    DOI:10.3788/IRLA20210224

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