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Acta Optica Sinica (Online), Volume. 2, Issue 12, 1205001(2025)

Performance Analysis of Coherent Detection Lidar and Research on Array Detectors for Three-Dimensional Imaging

Daojing Li1、*, Jinghan Gao1,2, Anjing Cui1,2, and Jiang Wu1,2
Author Affiliations
  • 1National Key Laboratory of Microwave Imaging Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
  • 2School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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    Figures & Tables(3)
    Block diagram of ladar system and array detector structure

    Fig. 1. Block diagram of ladar system and array detector structure

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    Schematic diagram of laser beam scanning

    Fig. 2. Schematic diagram of laser beam scanning

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    • Table 1. Parameters of ladar system

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      Table 1. Parameters of ladar system

      ParameterValueParameterValue
      Center wavelength /nm1550Pulse repetition frequency /kHz50
      Transmitting peak power /kW200Pulse width /ns10
      Transmitting average power /W100Duty cycle0.0005
      System bandwidth /MHz100Quantum efficiency0.5
      Target scattering coefficient0.2Loss factor of optical system0.4
      Depolarization loss factor0.5Backscatter angle of targetπ
      Electronic noise coefficient /dB3Loss factor of electronic system0.4
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    Daojing Li, Jinghan Gao, Anjing Cui, Jiang Wu. Performance Analysis of Coherent Detection Lidar and Research on Array Detectors for Three-Dimensional Imaging[J]. Acta Optica Sinica (Online), 2025, 2(12): 1205001

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    Paper Information

    Category: Optical Information Acquisition, Display, and Processing

    Received: Jan. 17, 2025

    Accepted: Apr. 2, 2025

    Published Online: Jun. 10, 2025

    The Author Email: Daojing Li (lidj@mail.ie.ac.cn)

    DOI:10.3788/AOSOL250433

    CSTR:32394.14.AOSOL250433

    Topics

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