Laser & Optoelectronics Progress, Volume. 61, Issue 7, 0706005(2024)

Research on Inter-Satellite Laser Communication Link Transmission and Routing Switching Technology of Satellite Internet (Invited)

Chengwu Chang* and Hongyang Liu
Author Affiliations
  • Beijing Space Information Transmission Center, Beijing 102300, China
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    Figures & Tables(8)
    Overall technical architecture diagram of inter-satellite laser communication link for satellite internet
    Distribution and convergence diagram between user microwave link and inter-satellite laser communication link for satellite internet
    Diagram of inter-satellite link configuration for low-orbit satellite Internet
    Diagram of dynamic switching of inter-satellite links between different orbital planes
    Schematic diagram of the composition of on-board photoelectric hybrid exchange
    Composition diagram of spaceborne optical switching based on wavelength
    Satellite internet space network address addressing diagram
    • Table 1. Development of inter-satellite laser communication link at home and abroad

      View table

      Table 1. Development of inter-satellite laser communication link at home and abroad

      TimeCountrySatellite systemLink typeData rate
      2008GermanyTerraSAR-XLEO-LEO5.625 Gbit/s
      USNFIRE
      2018USAeroCube B/CLEO-LEO100 Mbps
      2019USEDRSGEO-GEO/GEO-LEO1.8 Gbit/s
      2020ChinaXing YunLEO-LEO100 Mbit/s
      2021USStarlinkLEO-LEO100 Mbit/s
      2024USO2O4LEO-LEO250 Mbit/s
      2022USBlackJackLEO-LEO119 Mbit/s
      2022USTransmission Layer 0/1LEO-LEO1 Gbit/s
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    Chengwu Chang, Hongyang Liu. Research on Inter-Satellite Laser Communication Link Transmission and Routing Switching Technology of Satellite Internet (Invited)[J]. Laser & Optoelectronics Progress, 2024, 61(7): 0706005

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    Paper Information

    Category: Fiber Optics and Optical Communications

    Received: Jan. 5, 2024

    Accepted: Feb. 5, 2024

    Published Online: Apr. 18, 2024

    The Author Email: Chengwu Chang (chang_cw@126.com)

    DOI:10.3788/LOP240799

    CSTR:32186.14.LOP240799

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