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Joint transfer of time and frequency signals and multi-point synchronization via fiber network
Cheng N(程楠); Chen W(陈炜); Liu Q(刘琴); Xu D(徐丹); Yang F(杨飞); Gui YZ(桂有珍); Cai HW(蔡海文); yzgui@siom.ac.cn; hwcai@siom.ac.cn
2016
Source PublicationChin. Phys. B
Volume25Issue:1
Abstractsystem of jointly transferring time signals with a rate of 1 pulse per second (PPS) and frequency signals of 10 MHz via a dense wavelength division multiplex-based (DWDM) fiber is demonstrated in this paper. The noises of the fiber links are suppressed and compensated for by a controlled fiber delay line. A method of calibrating and characterizing time is described. The 1PPS is synchronized by feed-forward calibrating the fiber delays precisely. The system is experimentally examined via a 110 km spooled fiber in laboratory. The frequency stabilities of the user end with compensation are 1.8 x 10(-14) at 1 s and 2.0 x 10(-17) at 10(4) s average time. The calculated uncertainty of time synchronization is 13.1 ps, whereas the direct measurement of the uncertainty is 12 ps. Next, the frequency and 1PPS are transferred via a metropolitan area optical fiber network from one central site to two remote sites with distances of 14 km and 110 km. The frequency stabilities of 14 km link reach 3.0 x 10(-14) averaged in 1 s and 1.4 x 10(-17) in 104 s respectively; and the stabilities of 110 km link are 8.3 x 10(-14) and 1.7 x 10(-17), respectively. The accuracies of synchronization are estimated to be 12.3 ps for the 14 km link and 13.1 ps for the 110 km link, respectively.
SubtypeArticle
Department空间
DOI10.1088/1674-1056/25/1/014206
Funding OrganizationNational Natural Science Foundation of China [61405227] ; National Natural Science Foundation of China [61405227] ; National Natural Science Foundation of China [61405227] ; National Natural Science Foundation of China [61405227]
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China [61405227] ; National Natural Science Foundation of China [61405227] ; National Natural Science Foundation of China [61405227] ; National Natural Science Foundation of China [61405227]
WOS IDWOS:000368455100037
Citation statistics
Document Type期刊论文
Identifierhttp://ir.siom.ac.cn/handle/181231/28394
Collection空间激光信息技术研究中心
Corresponding Authoryzgui@siom.ac.cn; hwcai@siom.ac.cn
Affiliation中国科学院上海光学精密机械研究所
Recommended Citation
GB/T 7714
Cheng N,Chen W,Liu Q,et al. Joint transfer of time and frequency signals and multi-point synchronization via fiber network[J]. Chin. Phys. B,2016,25(1).
APA 程楠.,陈炜.,刘琴.,徐丹.,杨飞.,...&hwcai@siom.ac.cn.(2016).Joint transfer of time and frequency signals and multi-point synchronization via fiber network.Chin. Phys. B,25(1).
MLA 程楠,et al."Joint transfer of time and frequency signals and multi-point synchronization via fiber network".Chin. Phys. B 25.1(2016).
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