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Chinese Journal of Lasers, Volume. 51, Issue 23, 2301003(2024)

Spatial Coherence Characteristics of 4F Degenerate Cavity Optical Field

Jianhao Tang1,2, Xiaoqi Zhang1、*, Yanli Zhang1、**, Guowen Zhang1, Ruifeng Wang1, Ziang Chen1, and Jianqiang Zhu1、***
Author Affiliations
  • 1National Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 2School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
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    Experimental setup for 4F degenerate cavity

    Fig. 1. Experimental setup for 4F degenerate cavity

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    Normalized light intensity distribution for different diaphragm diameters. (a) Near-field light intensity at D=0.5 mm; (b) far-field light intensity at D=0.5 mm; (c) near-field light intensity at D=1.0 mm; (d) far-field light intensity at D=1.0 mm; (e) near-field light intensity at D=2.0 mm; (f) far-field light intensity at D=2.0 mm; (g) near-field light intensity without diaphragm; (h) far-field light intensity without diaphragm

    Fig. 2. Normalized light intensity distribution for different diaphragm diameters. (a) Near-field light intensity at D=0.5 mm; (b) far-field light intensity at D=0.5 mm; (c) near-field light intensity at D=1.0 mm; (d) far-field light intensity at D=1.0 mm; (e) near-field light intensity at D=2.0 mm; (f) far-field light intensity at D=2.0 mm; (g) near-field light intensity without diaphragm; (h) far-field light intensity without diaphragm

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    Light field transmission at different positions in 4F degenerate cavity

    Fig. 3. Light field transmission at different positions in 4F degenerate cavity

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    Spatial coherence at D=1.0 mm and ∆r=0.3 mm

    Fig. 4. Spatial coherence at D=1.0 mm and ∆r=0.3 mm

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    Spatial coherence distribution of experimental data and Schell model for different D. (a) D=0.5 mm; (b) D=1.0 mm; (c) D=2.0 mm

    Fig. 5. Spatial coherence distribution of experimental data and Schell model for different D. (a) D=0.5 mm; (b) D=1.0 mm; (c) D=2.0 mm

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    Jianhao Tang, Xiaoqi Zhang, Yanli Zhang, Guowen Zhang, Ruifeng Wang, Ziang Chen, Jianqiang Zhu. Spatial Coherence Characteristics of 4F Degenerate Cavity Optical Field[J]. Chinese Journal of Lasers, 2024, 51(23): 2301003

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    Paper Information

    Category: laser devices and laser physics

    Received: Mar. 19, 2024

    Accepted: May. 21, 2024

    Published Online: Dec. 11, 2024

    The Author Email: Zhang Xiaoqi (skcheung@siom.ac.cn), Zhang Yanli (zhangyl@siom.ac.cn), Zhu Jianqiang (jqzhu@siom.ac.cn)

    DOI:10.3788/CJL240694

    CSTR:32183.14.CJL240694

    Topics

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