Cascaded Microwave Frequency Transfer over 300-km Fiber Link with Instability at the 10(-18) Level

doi:10.3390/rs13112182

NTSC-IR

	Cascaded Microwave Frequency Transfer over 300-km Fiber Link with Instability at the 10(-18) Level
	Xue, Wenxiang 1,2; Zhao, Wenyu1,2 ; Quan, Honglei 1,2,3; Xing, Yan1,2 ; Zhang, Shougang 1,2
	2021-06-01
发表期刊	REMOTE SENSING
卷号	13 期号:11 页码:13
摘要	Comparing and synchronizing atomic clocks between distant laboratories with ultra-stable frequency transfer are essential procedures in many fields of fundamental and applied science. Existing conventional methods for frequency transfer based on satellite links, however, are insufficient for the requirements of many applications. In order to achieve high-precision microwave frequency transfer over a thousand kilometers of fiber and to construct a fiber-based microwave transfer network, we propose a cascaded system for microwave frequency transfer consisting of three 100-km single-span spooled fiber links using an improved electronic phase compensation scheme. The transfer instability measured for the microwave signal reaches 1.1 x 10(-)(14) at 1 s and 6.8 x 10(-)(18) at 10(5) s, which agrees with the root-sum-square of each span contribution. It is feasible to extend the length of the fiber-based microwave frequency transfer up to 1200 km using 4 stages of our cascaded system, which is still sufficient to transfer modern cold atom microwave frequency standards. Moreover, the transfer instability of 9.0 x 10(-15) at 1 s and 9.0 x 10(-18) at 10(5) s for a 100-MHz signal is achieved. The residual phase noise power spectral density of the 300-km cascaded link measured at 100-MHz is also obtained. The rejection frequency bandwidth of the cascaded link is limited by the propagation delay of one single-span link.
关键词	fiber link frequency transfer cascaded system transfer instability
资助者	National Natural Science Foundation of China ; National Natural Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; Nature Science Foundation of Shaanxi ; Nature Science Foundation of Shaanxi ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; Nature Science Foundation of Shaanxi ; Nature Science Foundation of Shaanxi ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; Nature Science Foundation of Shaanxi ; Nature Science Foundation of Shaanxi ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; Nature Science Foundation of Shaanxi ; Nature Science Foundation of Shaanxi
DOI	10.3390/rs13112182
关键词[WOS]	KM OPTICAL-FIBER ; RF FREQUENCY ; TIME ; SYNCHRONIZATION ; DISSEMINATION ; RESOLUTION ; DISTANCE ; CLOCKS
语种	英语
资助项目	National Natural Science Foundation of China[61825505] ; National Natural Science Foundation of China[91536217] ; West Light Foundation of the Chinese Academy of Sciences[29202082] ; Nature Science Foundation of Shaanxi[S2019-JC-WT-0002]
资助者	National Natural Science Foundation of China ; National Natural Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; Nature Science Foundation of Shaanxi ; Nature Science Foundation of Shaanxi ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; Nature Science Foundation of Shaanxi ; Nature Science Foundation of Shaanxi ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; Nature Science Foundation of Shaanxi ; Nature Science Foundation of Shaanxi ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; Nature Science Foundation of Shaanxi ; Nature Science Foundation of Shaanxi
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:000660596700001
出版者	MDPI
引用统计
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/10677
专题	中国科学院国家授时中心
通讯作者	Zhao, Wenyu
作者单位	1.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China 2.Chinese Acad Sci, Key Lab Time & Frequency Primary Stand, Xian 710600, Peoples R China 3.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Xue, Wenxiang,Zhao, Wenyu,Quan, Honglei,et al. Cascaded Microwave Frequency Transfer over 300-km Fiber Link with Instability at the 10(-18) Level[J]. REMOTE SENSING,2021,13(11):13.
APA	Xue, Wenxiang,Zhao, Wenyu,Quan, Honglei,Xing, Yan,&Zhang, Shougang.(2021).Cascaded Microwave Frequency Transfer over 300-km Fiber Link with Instability at the 10(-18) Level.REMOTE SENSING,13(11),13.
MLA	Xue, Wenxiang,et al."Cascaded Microwave Frequency Transfer over 300-km Fiber Link with Instability at the 10(-18) Level".REMOTE SENSING 13.11(2021):13.