Laser & Optoelectronics Progress, Volume. 57, Issue 5, 050004(2020)

Research Progress on Optical Fiber Time-Frequency Synchronization Technology

Yifeng Liang**, Jiangning Xu*, Miao Wu, Hongyang He, and Pengfei Jiang
Author Affiliations
  • College of Electrical Engineering, Naval University of Engineering, The Chinese People's Liberation Army, Wuhan, Hubei 430033, China
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    Figures & Tables(10)
    Principle diagram of time-frequency simultaneous transmission and synchronization experiment[3]
    Time transfer environment experiment schematic of SDH network[28]
    Bidirectional time transfer principle based on pseudo-random noise code[32]
    Principle block diagram of round-trip based on DWDM technology[35]
    Principle block diagram of bidirectional time comparison method based on DWDM technology[24]
    Frequency synchronization experimental process diagram of LNE-SYRTE fiber in France[41]
    Principle of Doppler noise suppression technology[46]
    Schematic of optical comb pulse signal transmission synchronization scheme in Peking University[9]
    Multiple topologies for optical fiber network transmission
    • Table 1. Technical characteristics of typical methods

      View table

      Table 1. Technical characteristics of typical methods

      TechnicaltypesTimingmethodsTime accuracyFrequency stabilityScope of actionAdvantages anddisadvantages
      Radio timeservicelong wavetime service~1 μs1×10-12 d-13000 km(territory,territorial sea)wide application scopehigh reliabilitygeneral accuracy
      Satellite timingTWSTFT~1 ns1×10-14 d-1communicationsatellite coveragehigh accuracygood instantaneity easy to interfere
      Optical fibertime-frequencysynchronizationDWDMup to 10 ps5×10-18 d-1optical fiber rangeof actionhigh accuracyaccuracy usuallydecreases with distance
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    Yifeng Liang, Jiangning Xu, Miao Wu, Hongyang He, Pengfei Jiang. Research Progress on Optical Fiber Time-Frequency Synchronization Technology[J]. Laser & Optoelectronics Progress, 2020, 57(5): 050004

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    Paper Information

    Category: Reviews

    Received: Jul. 1, 2019

    Accepted: Aug. 27, 2019

    Published Online: Mar. 5, 2020

    The Author Email: Liang Yifeng (310714938@qq.com), Xu Jiangning (1431425578@qq.com)

    DOI:10.3788/LOP57.050004

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