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Chinese Journal of Lasers, Volume. 47, Issue 6, 604001(2020)

10 11 High-Dynamic-Range Measurement for Nano-Joule-Level Weak Signal Based on Autocorrelation

Sun Qingfeng1,2, Li Dawei1,2, Wang Tao3, Zhang Teng1,2, Zhang Tianxiong3, and Xu Guang1
Author Affiliations
  • 1Key Laboratory of High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences, Shanghai 201800, China
  • 2Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
  • 3Shanghai Institute of Laser Plasma, China Academy of Engineering Physics, Shanghai 201800, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (9)
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    References (18)
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    Figures & Tables(9)
    Changes in measurable dynamic range with the energy and power (integral time 0.1 s) of correlation signal. (a) Energy; (b) power

    Fig. 1. Changes in measurable dynamic range with the energy and power (integral time 0.1 s) of correlation signal. (a) Energy; (b) power

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    Phase-matching diagram in autocorrelation process

    Fig. 2. Phase-matching diagram in autocorrelation process

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    Trend of sinc2(ΔkL/2) affecting measurable dynamic range at different phase-matching angles

    Fig. 3. Trend of sinc2(ΔkL/2) affecting measurable dynamic range at different phase-matching angles

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    Nonlinear process diagram

    Fig. 4. Nonlinear process diagram

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    Nonlinear process diagram under focusing and filtering

    Fig. 5. Nonlinear process diagram under focusing and filtering

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    Optical layout of high-dynamic-range measurement system

    Fig. 6. Optical layout of high-dynamic-range measurement system

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    Measurable dynamic range comparison curves under non-focusing and focusing

    Fig. 7. Measurable dynamic range comparison curves under non-focusing and focusing

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    Measurable dynamic range curves of different laser source power under focusing

    Fig. 8. Measurable dynamic range curves of different laser source power under focusing

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    • Table 1. Measurable dynamic ranges at different laser source power

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      Table 1. Measurable dynamic ranges at different laser source power

      No.1053 nmpower /mW526.5 nm power /μW (after crystal)DR
      12506.81.0×1011
      2360.56.8×109
      370.051.0×108
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    Sun Qingfeng, Li Dawei, Wang Tao, Zhang Teng, Zhang Tianxiong, Xu Guang. 10 11 High-Dynamic-Range Measurement for Nano-Joule-Level Weak Signal Based on Autocorrelation[J]. Chinese Journal of Lasers, 2020, 47(6): 604001

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    Paper Information

    Category: Measurement and metrology

    Received: Dec. 25, 2019

    Accepted: --

    Published Online: Jun. 3, 2020

    The Author Email:

    DOI:10.3788/CJL202047.0604001

    Topics

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