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Laser & Optoelectronics Progress, Volume. 60, Issue 10, 1010022(2023)

Image Process Optimization in Laser Beam Far-Field Automatic Alignment

Wenbin Guo1, Peiying Zeng2、*, Ningbo Cheng1、**, Tong Ji2, and Wei Zou1
Author Affiliations
  • 1Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China
  • 2National Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (14)
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    Figures & Tables(14)
    Beam alignment schematic of the main amplifier of a component in SGII-up laser facility

    Fig. 1. Beam alignment schematic of the main amplifier of a component in SGII-up laser facility

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    Images captured by TSF CCD camera and CSF CCD camera in beam alignment. (a) TSF image; (b) CSF image; (c) TSF image with center markers; (d) CSF image with center markers

    Fig. 2. Images captured by TSF CCD camera and CSF CCD camera in beam alignment. (a) TSF image; (b) CSF image; (c) TSF image with center markers; (d) CSF image with center markers

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    Regional constraint in TSF image processing

    Fig. 3. Regional constraint in TSF image processing

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    Regional constraint in CSF image processing

    Fig. 4. Regional constraint in CSF image processing

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    TSF far-field reference center computation procedure

    Fig. 5. TSF far-field reference center computation procedure

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    Far-field reference computation for TSF image. (a) Output image after edge detection; (b) reference result

    Fig. 6. Far-field reference computation for TSF image. (a) Output image after edge detection; (b) reference result

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    Comparation of elapsed time for far-field reference computation for TSF image

    Fig. 7. Comparation of elapsed time for far-field reference computation for TSF image

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    CSF far-field reference center computation procedure

    Fig. 8. CSF far-field reference center computation procedure

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    Far-field reference computation for CSF image. (a) Output image after edge detection; (b) reference result

    Fig. 9. Far-field reference computation for CSF image. (a) Output image after edge detection; (b) reference result

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    Comparation of elapsed time for far-field reference computation for CSF image

    Fig. 10. Comparation of elapsed time for far-field reference computation for CSF image

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    Far-field center computation procedure

    Fig. 11. Far-field center computation procedure

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    Far-field center computation result for TSF image. (a) Output image after binarization; (b) far-field center result

    Fig. 12. Far-field center computation result for TSF image. (a) Output image after binarization; (b) far-field center result

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    Far-field center computation result for CSF image. (a) Output image after binarization; (b) far-field center result

    Fig. 13. Far-field center computation result for CSF image. (a) Output image after binarization; (b) far-field center result

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    Elapsed time for far-field center computation. (a) TSF image; (b) CSF image

    Fig. 14. Elapsed time for far-field center computation. (a) TSF image; (b) CSF image

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    Wenbin Guo, Peiying Zeng, Ningbo Cheng, Tong Ji, Wei Zou. Image Process Optimization in Laser Beam Far-Field Automatic Alignment[J]. Laser & Optoelectronics Progress, 2023, 60(10): 1010022

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    Paper Information

    Category: Image Processing

    Received: Apr. 6, 2022

    Accepted: Apr. 20, 2022

    Published Online: May. 17, 2023

    The Author Email: Peiying Zeng (zengpeiying@siom.ac.cn), Ningbo Cheng (ningbo.cheng@ia.ac.cn)

    DOI:10.3788/LOP221213

    Topics

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