中国物理B ›› 2017, Vol. 26 ›› Issue (4): 40601-040601.doi: 10.1088/1674-1056/26/4/040601

• GENERAL • 上一篇    下一篇

Fiber-based multiple access timing signal synchronization technique

Yi-Bo Yuan(袁一博), Bo Wang(王波), Chao Gao(高超), Li-Jun Wang(王力军)   

  1. 1 Joint Institute for Measurement Science, State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084, China;
    2 Department of Precision Instrument, Tsinghua University, Beijing 100084, China;
    3 Department of Physics, Tsinghua University, Beijing 100084, China
  • 收稿日期:2016-09-23 修回日期:2016-11-29 出版日期:2017-04-05 发布日期:2017-04-05
  • 通讯作者: Bo Wang E-mail:bo.wang@tsinghua.edu.cn
  • 基金资助:
    Project supported by the National Key Scientific Instrument and Equipment Development Project of China (Grant No. 2013YQ09094303) and the Program of International Science and Technology Cooperation (Grant No. 2016YFE0100200).

Fiber-based multiple access timing signal synchronization technique

Yi-Bo Yuan(袁一博)1,3, Bo Wang(王波)1,2, Chao Gao(高超)1,2, Li-Jun Wang(王力军)1,2,3   

  1. 1 Joint Institute for Measurement Science, State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084, China;
    2 Department of Precision Instrument, Tsinghua University, Beijing 100084, China;
    3 Department of Physics, Tsinghua University, Beijing 100084, China
  • Received:2016-09-23 Revised:2016-11-29 Online:2017-04-05 Published:2017-04-05
  • Contact: Bo Wang E-mail:bo.wang@tsinghua.edu.cn
  • Supported by:
    Project supported by the National Key Scientific Instrument and Equipment Development Project of China (Grant No. 2013YQ09094303) and the Program of International Science and Technology Cooperation (Grant No. 2016YFE0100200).

摘要: A fiber-based, multiple access timing signal synchronization scheme is demonstrated. By coupling out the bidirectional transmission signals, a highly stable timing signal can be recovered at arbitrary points along the fiber with the help of the loop delay message broadcasted via ethernet from the local module. The experiment is carried out on a 30-km fiber placed in a temperature-controlled box. In one-day period, when the round trip fiber transfer delay fluctuation is 60 ns, the fluctuations of the stabilized timing signal from the download and the remote modules were only ± 125 ps and ± 100 ps, respectively. Also, the system error caused by transmission path asymmetry and thermal drift is calibrated, and a 100-ps magnitude synchronization accuracy is realized. This method could provide new insights into the construction of a fiber-based time transfer network.

关键词: time synchronization, multiple access, time transfer

Abstract: A fiber-based, multiple access timing signal synchronization scheme is demonstrated. By coupling out the bidirectional transmission signals, a highly stable timing signal can be recovered at arbitrary points along the fiber with the help of the loop delay message broadcasted via ethernet from the local module. The experiment is carried out on a 30-km fiber placed in a temperature-controlled box. In one-day period, when the round trip fiber transfer delay fluctuation is 60 ns, the fluctuations of the stabilized timing signal from the download and the remote modules were only ± 125 ps and ± 100 ps, respectively. Also, the system error caused by transmission path asymmetry and thermal drift is calibrated, and a 100-ps magnitude synchronization accuracy is realized. This method could provide new insights into the construction of a fiber-based time transfer network.

Key words: time synchronization, multiple access, time transfer

中图分类号:  (Measurements common to several branches of physics and astronomy)

  • 06.30.-k
07.60.Vg (Fiber-optic instruments) 06.30.Ft (Time and frequency)