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Acta Optica Sinica, Volume. 42, Issue 12, 1228001(2022)

Development of Mie-Raman Scattering Scanning Lidar for Probing Slant Visibility

Shichun Li1,2、*, Teng Ren1, Xu Wang1, Yufeng Wang1,2, Wenhui Xin1,2, and Dengxin Hua1,2、**
Author Affiliations
  • 1School of Mechanical and Precision Instrument Engineering, Xi′an University of Technology, Xi′an 710048, Shaanxi, China
  • 2Collaborative Innovation Centre for Modern-Equipment Environmentally-Conscious Manufacturing of shaanxi province, Xi′an 710048, Shaanxi, China
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    AbstractGet PDF(in Chinese)
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    Mie-Raman scanning lidar. (a) Schematic diagram; (b) physical diagram

    Fig. 1. Mie-Raman scanning lidar. (a) Schematic diagram; (b) physical diagram

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    Main interface of integrated software

    Fig. 2. Main interface of integrated software

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    State transition of scanning lidar based on finite state machine

    Fig. 3. State transition of scanning lidar based on finite state machine

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    Time sequence diagram of scanning lidar

    Fig. 4. Time sequence diagram of scanning lidar

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    Principle of ring-shaped double data-buffer. (a) State 1; (b) state 2; (c) state 3; (d) state 4

    Fig. 5. Principle of ring-shaped double data-buffer. (a) State 1; (b) state 2; (c) state 3; (d) state 4

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    RHI diagrams of atmospheric extinction coefficient at different exciting wavelengths. (a) 355 nm; (b) 1064 nm

    Fig. 6. RHI diagrams of atmospheric extinction coefficient at different exciting wavelengths. (a) 355 nm; (b) 1064 nm

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    Extinction coefficient profiles with different elevation angles. (a) 26°; (b) 34°; (c) 42°

    Fig. 7. Extinction coefficient profiles with different elevation angles. (a) 26°; (b) 34°; (c) 42°

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    Comparison of observation experiments with different modes. (a) Scanning mode; (b) non-scanning mode

    Fig. 8. Comparison of observation experiments with different modes. (a) Scanning mode; (b) non-scanning mode

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    Comparison of observation experiments with different exciting wavelengths. (a) 355 nm; (b) 1064 nm

    Fig. 9. Comparison of observation experiments with different exciting wavelengths. (a) 355 nm; (b) 1064 nm

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    Observation experiment results for 24 hours at different exciting wavelengths. (a) 355 nm; (b) 1064 nm

    Fig. 10. Observation experiment results for 24 hours at different exciting wavelengths. (a) 355 nm; (b) 1064 nm

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    • Table 1. Main parameters of Mie-Raman scanning lidar

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      Table 1. Main parameters of Mie-Raman scanning lidar

      DeviceParameterDescription
      Exciting wavelength /nm355 or 1064
      TransmitterNominal pulse energy /mJ300@354.73 nm (adjustable),290@1064.20 nm (adjustable)
      Pulse repetition frequency /Hz10
      Pulse duration /ns8
      Telescope typeCassegrain
      ReceiverDiameter of telescope /mm254
      Field of view /mrad0.5
      Optic fiber diameter /mm0.8
      Central wavelength (CW) of IFx (x=1, 2, 3, 4) /nm1064.20, 852.70, 386.67, 354.73
      FWHM of IFx /nm0.3, 1.0, 1.0, 0.3
      Transmittance of IFx for CW60% for each
      PolychrotorBlocking level of IFxOD6 for each
      Cut-on wavelength of DMy (y=1, 2, 3) /nm735, 950, 376
      Transmittance for transmission band95% for each
      Reflectance for reflection band99% for each
      Type of PMTyR5108, R7056, R7056
      Quantum efficiency of PMTy /%3, 22, 23
      Gain of PMTy3×105, 5×106, 5×106
      Signal detectionand acquisitionmoduleType of APDS11519-30
      Quantum efficiency /%40
      Sampling rate /(MSa·s-1)40
      Sampling resolution /bit16
      Azimuth angle range /(°)0--360
      Scanning moduleElevation angle range /(°)-45--45
      Scanning resolution /(°)0.01
      Scanning velocity /[(°)·s-1]0.01--15.00 (adjustable)
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    Shichun Li, Teng Ren, Xu Wang, Yufeng Wang, Wenhui Xin, Dengxin Hua. Development of Mie-Raman Scattering Scanning Lidar for Probing Slant Visibility[J]. Acta Optica Sinica, 2022, 42(12): 1228001

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    Paper Information

    Category: Remote Sensing and Sensors

    Received: Aug. 30, 2021

    Accepted: Nov. 3, 2021

    Published Online: Jun. 7, 2022

    The Author Email: Li Shichun (lsczqz@xaut.edu.cn), Hua Dengxin (dengxinhua@xaut.edu.cn)

    DOI:10.3788/AOS202242.1228001

    Topics

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