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Acta Optica Sinica, Volume. 45, Issue 6, 0628006(2025)

Performance of Laser Time-Frequency Transfer System in China Space Station

Zhibo Wu1,3、*, Renfang Geng1,2, Kai Tang1, Wendong Meng1,3, Haifeng Zhang1,3, Zhien Cheng1, Aimin Xiao4, Shuaihe Gao5, Xiao Wang5, Yong Huang1,2, and Zhongping Zhang1,3
Author Affiliations
  • 1Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China
  • 2School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, China
  • 3Key Laboratory of Space Object and Debris Observation, Chinese Academy of Sciences, Nanjing 210008, Jiangsu , China
  • 4Technology and Engineering Center for Space Utilization, Chinese Academy of Sciences, Beijing , 100094, China
  • 5National Time Service Center, Chinese Academy of Sciences, Xi’an 710600, Shaanxi , China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (12)
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    References (26)
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    Figures & Tables(12)
    Diagram of laser time-frequency transfer in Chinese Space Station

    Fig. 1. Diagram of laser time-frequency transfer in Chinese Space Station

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    Laser time-frequency transfer payload in Chinese Space Station

    Fig. 2. Laser time-frequency transfer payload in Chinese Space Station

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    Delay temperature drift coefficient of detector module

    Fig. 3. Delay temperature drift coefficient of detector module

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    Optical system composition of laser time-frequency transfer payload

    Fig. 4. Optical system composition of laser time-frequency transfer payload

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    Event timer design schematic of laser time-frequency transfer payload in Chinese space station

    Fig. 5. Event timer design schematic of laser time-frequency transfer payload in Chinese space station

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    Block diagram of satellite laser ranging system (gray is the newly added module)

    Fig. 6. Block diagram of satellite laser ranging system (gray is the newly added module)

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    Stability results of desktop performance test for laser time-frequency transfer payload. (a) Long-term stability; (b) short-term stability

    Fig. 7. Stability results of desktop performance test for laser time-frequency transfer payload. (a) Long-term stability; (b) short-term stability

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    LRA ranging result of Shanghai satellite laser ranging station

    Fig. 8. LRA ranging result of Shanghai satellite laser ranging station

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    Statistics of LRA ranging precision of Beijing satellite laser ranging station

    Fig. 9. Statistics of LRA ranging precision of Beijing satellite laser ranging station

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    Laser time-frequency transfer result in Xi’an satellite laser ranging station

    Fig. 10. Laser time-frequency transfer result in Xi’an satellite laser ranging station

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    Laser time-frequency transfer result in Beijing satellite laser ranging station

    Fig. 11. Laser time-frequency transfer result in Beijing satellite laser ranging station

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    • Table 1. Factors influencing precision of laser time-frequency transfer in Chinese Space Station

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      Table 1. Factors influencing precision of laser time-frequency transfer in Chinese Space Station

      Uncertainty sourceError /psComment

      Emission epochs uncertainty

      		InGaAs pin photodiode2Standard deviation obtained at constant threshold in a saturated mode
      Event timer8Standard deviation based on a perfect frequency reference［24］
      Combined uncertainty8Quadratic sum

      Reception epochs uncertainty

      		Nd∶YAG laser6Uncertainty of the laser pulse width at half maximum
      Avalanche silicon photodiode20Standard deviation made in a single photon mode over the whole aperture
      LRA signature9Attitude sensitivity［26］
      Event timer8Standard deviation based on a perfect frequency reference
      Laser station return detector time walk versus laser energy3Included by the energy variation of laser pulses in a single photon detection mode
      Combined uncertainty24Quadratic sum

      On board epochs uncertainty

      		Nd∶YAG laser6Uncertainty of the laser pulse width at half maximum
      Avalanche silicon photodiode20Standard deviation made in a single photon mode over the whole aperture
      Event timer8Standard deviation based on a perfect frequency reference［24］
      Board detector time walk versus laser energy3Included by the energy variation of laser pulses in a single photon detection mode
      Combined uncertainty22Quadratic sum
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    Zhibo Wu, Renfang Geng, Kai Tang, Wendong Meng, Haifeng Zhang, Zhien Cheng, Aimin Xiao, Shuaihe Gao, Xiao Wang, Yong Huang, Zhongping Zhang. Performance of Laser Time-Frequency Transfer System in China Space Station[J]. Acta Optica Sinica, 2025, 45(6): 0628006

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    Paper Information

    Category: Remote Sensing and Sensors

    Received: Jul. 11, 2024

    Accepted: Sep. 25, 2024

    Published Online: Mar. 24, 2025

    The Author Email: Zhibo Wu (wzb@shao.ac.cn)

    DOI:10.3788/AOS241285

    CSTR:32393.14.AOS241285

    Topics

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