Infrared and Laser Engineering, Volume. 51, Issue 7, 20210639(2022)

Study on dynamic wavelength matching technology of laser radar based on volume grating narrowband optical filtering

Wei Fan1,2,3, Bo Liu1,2,3, and Yun Jiang1,2,3
Author Affiliations
  • 1Key Laboratory of Science and Technology on Space Optoelectronic Precision Measurement, Chinese Academy of Sciences, Chengdu 610209, China
  • 2Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China
  • 3University of Chinese Academy of Sciences, Beijing 100049, China
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    Figures & Tables(12)
    Diagram of reflecting VBG
    Volume grating filtering characteristics
    Volume grating angle characteristics
    (a) The emission spectrum and VBG spectrum; (b) Simulation analysis of wavelength matching error
    Measurement of angular characteristics of 1 064 nm volume grating
    Design of wavelength tracking system
    Diagram of wavelength tracking system
    Relationship between angular resolution and central wavelength resolution
    Transmittance changes during volume grating angular scanning
    (a) Experimental results of wavelength matching tracking;(b) Analysis of wavelength matching error
    • Table 1. Overview of tunable filter parameters

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      Table 1. Overview of tunable filter parameters

      TypeBand width/nmTuning range/nm
      Fiber Bragg grating0.03-380
      F-P filter<0.10.8-340
      Mach-Zehnder filter<0.2<4
      AOTF>0.3<500
      VBG<0.1>20
    • Table 2. Wavelength tracking of fixed wavelength

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      Table 2. Wavelength tracking of fixed wavelength

      Number123
      Temperature/℃Wavelength/nmWavelength/nmWavelength/nm
      25T1064.41041064.41041064.4104
      R1064.40751064.40751064.4075
      29T1064.38421064.38421064.3828
      R1064.38131064.38131064.3813
      33T1064.37541064.37541064.3754
      R1064.37261064.37261064.3740
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    Wei Fan, Bo Liu, Yun Jiang. Study on dynamic wavelength matching technology of laser radar based on volume grating narrowband optical filtering[J]. Infrared and Laser Engineering, 2022, 51(7): 20210639

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    Paper Information

    Category: Lasers & Laser optics

    Received: Sep. 6, 2021

    Accepted: --

    Published Online: Dec. 20, 2022

    The Author Email:

    DOI:10.3788/IRLA20210639

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