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Chinese Journal of Lasers, Volume. 46, Issue 7, 0705004(2019)

Experimental Verification of Wavefront Correction Based on Linear Quadratic Gaussian Control

Haiqi Lin1,2,3, Ping Yang1,2、*, Qingfeng Kong1,2,3,4, and Bing Xu1,2
Author Affiliations
  • 1 Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu, Sichuan 610209, China
  • 2 Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan 610209, China
  • 3 University of Chinese Academy of Sciences, Beijing 100049, China
  • 4 School of Optoelectronic Information, University of Electronic Science and Technology of China,Chengdu, Sichuan 610054, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (8)
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    Figures & Tables(8)
    Adaptive optical system. (a) Block diagram; (b) temporal diagram

    Fig. 1. Adaptive optical system. (a) Block diagram; (b) temporal diagram

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    Experimental equipment of adaptive optical system

    Fig. 2. Experimental equipment of adaptive optical system

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    Correction results based on LQG. (a) Far-field spot before correction; (b) far-field spot after correction

    Fig. 3. Correction results based on LQG. (a) Far-field spot before correction; (b) far-field spot after correction

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    Slope curves and voltage curves before and after correction. (a) Slope curves of WFS before and after correction; (b) voltage curves of DM after correction

    Fig. 4. Slope curves and voltage curves before and after correction. (a) Slope curves of WFS before and after correction; (b) voltage curves of DM after correction

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    Comparison of RMS of residual wavefront after correction

    Fig. 5. Comparison of RMS of residual wavefront after correction

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    Comparison of peak intensities (PI) of far-field spots after correction

    Fig. 6. Comparison of peak intensities (PI) of far-field spots after correction

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    Actuator voltages of DM after correction. (a) Actuator voltage of DM based on proportional-integral control;(b) actuator voltage of DM based on LQG control

    Fig. 7. Actuator voltages of DM after correction. (a) Actuator voltage of DM based on proportional-integral control;(b) actuator voltage of DM based on LQG control

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    Slope curves of far-field spot after correction. (a) Slope curves of far-field spot after correction based on proportional-integral control; (b) slope curves of far-field spot based on LQG control

    Fig. 8. Slope curves of far-field spot after correction. (a) Slope curves of far-field spot after correction based on proportional-integral control; (b) slope curves of far-field spot based on LQG control

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    Haiqi Lin, Ping Yang, Qingfeng Kong, Bing Xu. Experimental Verification of Wavefront Correction Based on Linear Quadratic Gaussian Control[J]. Chinese Journal of Lasers, 2019, 46(7): 0705004

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    Paper Information

    Category: beam transmission and control

    Received: Feb. 26, 2019

    Accepted: Mar. 28, 2019

    Published Online: Jul. 11, 2019

    The Author Email: Yang Ping ( pingyang2516@163.com)

    DOI:10.3788/CJL201946.0705004

    Topics

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