NTSC-IR  > 量子频标研究室
Study of optical frequency transfer via fiber
Liu Jie; Gao Jing; Xu Guan-Jun; Jiao Dong-Dong; Yan Lu-Lu; Dong Rui-Fang; Jiang Hai-Feng; Liu Tao; Zhang Shou-Gang
2015
发表期刊ACTA PHYSICA SINICA
ISSN1000-3290
卷号64期号:12
摘要Optical clocks are considered as promising candidates for redefining the second in the International System of Units. Compared with microwave clocks, optical clocks are powerful tools for the fundamental research such as the constancy of the fundamental constants, the validity of Einstein's theory of general relativity, and the predictions of quantum electrodynamics. Recently two research groups have demonstrated the optical clocks with an unprecedented precision level of 10(-18), which is two orders better than the present primary frequency standard. Using two Sr optical clocks and three Cs fountain clocks, SYRTE group has demonstrated the definition of second with optical clocks. For redefining the second with optical clocks in the future, the optical clocks from the remote laboratories should have a high precision and the frequency of the optical clocks need to be transferred over a long distance, with extremely high precision. Unfortunately the conventional means of frequency transfer such as two-way satellite time and frequency transfer can reach a 10(-16) level in one day which is far below the requirement for an optical clocks. Various methods have been developed to transfer optical frequency signal via optical fibers. Especially a research group from Germany has achieved a frequency transfer stability of 10(-19) level in hundreds of seconds with a fiber length of 1840 km. We demonstrate the recent development of optical frequency transfer over a 70-km fiber spool at National Time Service Center. The measurement shows that the compensation for the fiber noise is close to the limitation induced by the fiber delay for the Fourier frequency from 1 Hz to 250 Hz. The transfer stability (Allan deviation) of the fiber link is 1.2 x 10(-15) in 1 s averaging time, and 1.4 x 10(-18) in 10000 s. A preliminary test of the optical frequency transfer over a 100-km spooled fiber is achieved with a stability of roughly one order worse than the 71 km result, 5 x 10(-15) in 1 s. We demonstrate a new scheme of remote compensation for optical frequency transfer via fibers against conventional local compensation method. This new scheme has the advantage of great simplification of the local site, which can find applications in massive extension of star network. The key feature is that we transfer the mixture of the round-trip signal and local reference to the remote user's end via an auxiliary fiber. At remote site, the fiber noise is measured and compensated by AOM2 accordingly. Transfer stabilities of 13 x 10(-15) in 1 s averaging time and 4.8 x 10(-18) in 10000 s are achieved with the remote fiber noise compensation via a 25 km fiber spool. The demonstrated transfer stability is comparable to that obtained by the local fiber noise compensation method. The future star fiber network of optical frequency transfer can benefit from this method, because the simpler local setup is required and even can be shared in the central site for multitudinous remote users.
部门归属量子频标研究室
收录类别SCI
语种中文
WOS记录号WOS:000356793900005
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://210.72.145.45/handle/361003/7392
专题量子频标研究室
推荐引用方式
GB/T 7714
Liu Jie,Gao Jing,Xu Guan-Jun,et al. Study of optical frequency transfer via fiber[J]. ACTA PHYSICA SINICA,2015,64(12).
APA Liu Jie.,Gao Jing.,Xu Guan-Jun.,Jiao Dong-Dong.,Yan Lu-Lu.,...&Zhang Shou-Gang.(2015).Study of optical frequency transfer via fiber.ACTA PHYSICA SINICA,64(12).
MLA Liu Jie,et al."Study of optical frequency transfer via fiber".ACTA PHYSICA SINICA 64.12(2015).
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Study of optical fre(530KB) 限制开放CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Liu Jie]的文章
[Gao Jing]的文章
[Xu Guan-Jun]的文章
百度学术
百度学术中相似的文章
[Liu Jie]的文章
[Gao Jing]的文章
[Xu Guan-Jun]的文章
必应学术
必应学术中相似的文章
[Liu Jie]的文章
[Gao Jing]的文章
[Xu Guan-Jun]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。