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Chinese Journal of Lasers, Volume. 50, Issue 6, 0605001(2023)

Correction of Pointing Deviation of Risley Prisms Based on Levenberg-Marquardt Algorithm

Yuxin Jiang1,2, Jianfeng Sun3、*, Peipei Hou1, Ronglei Han1,2, Weijie Ren1,2, Haisheng Cong1,2, Longkun Zhang1, Chaoyang Li1, Lingling Xu1,2, and Zhengwei Zhang1
Author Affiliations
  • 1Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academic of Sciences, Shanghai 201800, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
  • 3Department of Aerospace Laser Engineering, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (10)
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    References (21)
    Cited By (7)
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    Figures & Tables(10)
    Propagation process of light in rotating double prism system

    Fig. 1. Propagation process of light in rotating double prism system

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    Optimized minimum error evaluation function value in the case of different initial values

    Fig. 2. Optimized minimum error evaluation function value in the case of different initial values

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    Error correction experiment platform of Risley prisms. (a) Schematic; (b) physical map

    Fig. 3. Error correction experiment platform of Risley prisms. (a) Schematic; (b) physical map

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    Theoretical points selected on light screen

    Fig. 4. Theoretical points selected on light screen

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    Deviation of theoretical and actual points before correction. (a) Deviation of theoretical and actual points on light screen; (b) deviation of theoretical and actual points in different positions

    Fig. 5. Deviation of theoretical and actual points before correction. (a) Deviation of theoretical and actual points on light screen; (b) deviation of theoretical and actual points in different positions

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    Deviation of theoretical and actual points after overall correction. (a) Cost function of error varies with iterations; (b) deviation of theoretical and actual points on light screen; (c) deviation of theoretical and actual points in different positions

    Fig. 6. Deviation of theoretical and actual points after overall correction. (a) Cost function of error varies with iterations; (b) deviation of theoretical and actual points on light screen; (c) deviation of theoretical and actual points in different positions

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    Beam pointing deviation at different azimuth and pitch angles

    Fig. 7. Beam pointing deviation at different azimuth and pitch angles

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    Deviation of theoretical and actual points after adding the correction for the error of initial incident beam relative to ideal optical axis. (a) Cost function of error varies with iterations; (b) deviation of theoretical and actual points on light screen; (c) deviation of theoretical and actual points in different positions

    Fig. 8. Deviation of theoretical and actual points after adding the correction for the error of initial incident beam relative to ideal optical axis. (a) Cost function of error varies with iterations; (b) deviation of theoretical and actual points on light screen; (c) deviation of theoretical and actual points in different positions

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    Deviation of theoretical and actual points after individually correcting the points whose pitch angle is less than 15°. (a) Cost function of error varies with iterations; (b) deviation of theoretical and actual points on light screen; (c) deviation of theoretical and actual points in different positions

    Fig. 9. Deviation of theoretical and actual points after individually correcting the points whose pitch angle is less than 15°. (a) Cost function of error varies with iterations; (b) deviation of theoretical and actual points on light screen; (c) deviation of theoretical and actual points in different positions

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    • Table 1. Maximum pointing deviation caused by some error sources to different fields of view of rotating Risley prisms

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      Table 1. Maximum pointing deviation caused by some error sources to different fields of view of rotating Risley prisms

      Error nameError setting value /（°）Maximum pointing deviation in the area with pitch angle less than 15° /mradMaximum pointing deviation in entire area /mrad
      Pitch angle of incident beam0.11.962.73
      Azimuth of incident beam0.12.73×10-66.9×10-6
      Pitch angle of ∏10.10.460.48
      Azimuth of ∏10.10.040.06
      Pitch angle of ∏20.10.460.50
      Azimuth of ∏20.10.040.38
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    Yuxin Jiang, Jianfeng Sun, Peipei Hou, Ronglei Han, Weijie Ren, Haisheng Cong, Longkun Zhang, Chaoyang Li, Lingling Xu, Zhengwei Zhang. Correction of Pointing Deviation of Risley Prisms Based on Levenberg-Marquardt Algorithm[J]. Chinese Journal of Lasers, 2023, 50(6): 0605001

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    Paper Information

    Category: Beam transmission and control

    Received: Mar. 4, 2022

    Accepted: May. 25, 2022

    Published Online: Feb. 28, 2023

    The Author Email: Sun Jianfeng (sunjianfengs@163.com)

    DOI:10.3788/CJL220634

    Topics

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