Infrared and Laser Engineering, Volume. 53, Issue 6, 20240118(2024)

Design of optical axis monitoring system for space-borne lidar

Yuan WAN1,2, Rui LI1、*, Yang ZHANG3, Jinru YUAN3, Heng XIONG1, Guowei ZHOU1, Jiqiao LIU1,2, and Xia HOU1,2
Author Affiliations
  • 1Aerospace Laser Technology and System Department, 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 Satellite Engineering, Shanghai 201109, China
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    Figures & Tables(15)
    Diagram of the composition of the boresight monitoring system
    The image quality metric for the collimation beam of 785 nm fiber. (a) The spot diagram; (b) The far field irradiance map of the collimation beam
    The image quality metric for the receiving axis from reference light
    The image quality metric for the emission optical axis
    Schematic diagram of multi-channel imaging spots on CCD
    Schematic diagram of the changing optical axis of the R-C system
    The relationship between the optical axis of the receiving channel and the tilt angle of the secondary mirror carrying the reference mirror
    The relationship between the deviation of the receiving optical axis and the tilt angle of the secondary mirror
    Taking optical prism structural representation
    Thermal control simulation results
    Space vacuum thermal environment of lidar calibration test device
    Comparison of optical axis tests. (a) X-direction comparison of the optical axis of emission; (b) Y-direction comparison of the optical axis of emission; (c) X-direction comparison of the optical axis of received (d) Y-direction comparison of the optical axis of received
    On-orbit telemetry data for the optical axis of emission and received
    • Table 1. The performance statistics for each channel

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      Table 1. The performance statistics for each channel

      Star-sensitive optical axisReceiving optical axisLaser emitting optical axisReference optical axis
      Equivalent focal length/mm5001102254375250
      Accuracy/μrad200.092.2840
    • Table 2. CCD camera optical axis data statistics

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      Table 2. CCD camera optical axis data statistics

      Measured valueReceiving optical axis X/μradReceiving optical axis Y/μradLaser emitting optical axis X/μradLaser emitting optical axis Y/μradStar-sensitive optical axisX/μradStar-sensitive optical axisY/μradReference optical axisX/μradReference optical axisY/μrad
      RMS0.60.30.90.90000
      PV2.71.62.32.30000
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    Yuan WAN, Rui LI, Yang ZHANG, Jinru YUAN, Heng XIONG, Guowei ZHOU, Jiqiao LIU, Xia HOU. Design of optical axis monitoring system for space-borne lidar[J]. Infrared and Laser Engineering, 2024, 53(6): 20240118

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    Paper Information

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    Received: Mar. 13, 2024

    Accepted: --

    Published Online: Jul. 31, 2024

    The Author Email: LI Rui (lirui@siom.ac.cn)

    DOI:10.3788/IRLA20240118

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