Strontium optical lattice clock at the National Time Service Center

doi:10.1088/1674-1056/27/2/023701

中国物理B ›› 2018, Vol. 27 ›› Issue (2): 23701-023701.doi: 10.1088/1674-1056/27/2/023701

• SPECIAL TOPIC—Soft matter and biological physics (Review) • 上一篇下一篇

Strontium optical lattice clock at the National Time Service Center

Ye-Bing Wang(王叶兵), Mo-Juan Yin(尹默娟), Jie Ren(任洁), Qin-Fang Xu(徐琴芳), Ben-Quan Lu(卢本全), Jian-Xin Han(韩建新), Yang Guo(郭阳), Hong Chang(常宏)

1. CAS Key Laboratory of Time and Frequency Primary Standards, National Time Service Center, Xi'an 710600, China;
2. University of Chinese Academy of Sciences(CAS), Beijing 100049, China

收稿日期:2017-12-01 修回日期:2017-12-18 出版日期:2018-02-05 发布日期:2018-02-05
通讯作者: Hong Chang E-mail:changhong@ntsc.ac.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11474282 and 61775220), the Key Research Project of Frontier Science of the Chinese Academy of Sciences (Grant No. QYZDB-SSW-JSC004), and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB21030700).

Strontium optical lattice clock at the National Time Service Center

Ye-Bing Wang(王叶兵)^1,2, Mo-Juan Yin(尹默娟)¹, Jie Ren(任洁)¹, Qin-Fang Xu(徐琴芳)¹, Ben-Quan Lu(卢本全)^1,2, Jian-Xin Han(韩建新)^1,2, Yang Guo(郭阳)^1,2, Hong Chang(常宏)¹

1. CAS Key Laboratory of Time and Frequency Primary Standards, National Time Service Center, Xi'an 710600, China;
2. University of Chinese Academy of Sciences(CAS), Beijing 100049, China

Received:2017-12-01 Revised:2017-12-18 Online:2018-02-05 Published:2018-02-05
Contact: Hong Chang E-mail:changhong@ntsc.ac.cn
About author:37.10.Jk; 32.70.Jz; 06.30.Ft; 42.62.Eh
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11474282 and 61775220), the Key Research Project of Frontier Science of the Chinese Academy of Sciences (Grant No. QYZDB-SSW-JSC004), and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB21030700).

摘要/Abstract

摘要：

We report the ⁸⁷Sr optical lattice clock developed at the National Time Service Center. We achieved a closed-loop operation of the optical lattice clock based on ⁸⁷Sr atoms. The linewidth of the spin-polarized clock peak is 3.9 Hz with a clock laser pulse length of 300 ms, which corresponds to a Fourier-limited linewidth of 3 Hz. The fitting of the in-loop error signal data shows that the instability is approximately 5×10^-15τ^-1/2, affected primarily by the white noise. The fractional frequency difference averages down to 5.7×10^-17 for an averaging time of 3000 s.

关键词: optical clock, optical lattice, strontium atoms, stability

Abstract:

Key words: optical clock, optical lattice, strontium atoms, stability

中图分类号: (Atoms in optical lattices)

37.10.Jk

32.70.Jz (Line shapes, widths, and shifts) 06.30.Ft (Time and frequency) 42.62.Eh (Metrological applications; optical frequency synthesizers for precision spectroscopy)

王叶兵, 尹默娟, 任洁, 徐琴芳, 卢本全, 韩建新, 郭阳, 常宏. Strontium optical lattice clock at the National Time Service Center[J]. 中国物理B, 2018, 27(2): 23701-023701.

Ye-Bing Wang(王叶兵), Mo-Juan Yin(尹默娟), Jie Ren(任洁), Qin-Fang Xu(徐琴芳), Ben-Quan Lu(卢本全), Jian-Xin Han(韩建新), Yang Guo(郭阳), Hong Chang(常宏). Strontium optical lattice clock at the National Time Service Center[J]. Chin. Phys. B, 2018, 27(2): 23701-023701.

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Strontium optical lattice clock at the National Time Service Center

Strontium optical lattice clock at the National Time Service Center

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