Ramsey-coherent population trapping Cs atomic clock based on lin||lin optical pumping with dispersion detection

doi:10.1088/1674-1056/28/7/070601

中国物理B ›› 2019, Vol. 28 ›› Issue (7): 70601-070601.doi: 10.1088/1674-1056/28/7/070601

• SPECIAL TOPIC—Recent advances in thermoelectric materials and devices • 上一篇下一篇

Ramsey-coherent population trapping Cs atomic clock based on lin||lin optical pumping with dispersion detection

Peng-Fei Cheng(程鹏飞), Jian-Wei Zhang(张建伟), Li-Jun Wang(王力军)

1 Department of Physics, Tsinghua University, Beijing 100084, China;
2 State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084, China;
3 Department of Precision Instruments, Tsinghua University, Beijing 100084, China

收稿日期:2019-03-22 修回日期:2019-04-10 出版日期:2019-07-05 发布日期:2019-07-05
通讯作者: Jian-Wei Zhang, Li-Jun Wang E-mail:zhangjw@tsinghua.edu.cn;lwan@tsinghua.edu.cn
基金资助:
Project supported by the National Key Research and Development Progress of China (Grant No. 2016YFA030210) and the Initiative Program of the State Key Laboratory of Precision Measurement Technology and Instruments, China.

Ramsey-coherent population trapping Cs atomic clock based on lin||lin optical pumping with dispersion detection

Peng-Fei Cheng(程鹏飞)^1,2, Jian-Wei Zhang(张建伟)^2,3, Li-Jun Wang(王力军)^1,2,3

1 Department of Physics, Tsinghua University, Beijing 100084, China;
2 State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084, China;
3 Department of Precision Instruments, Tsinghua University, Beijing 100084, China

Received:2019-03-22 Revised:2019-04-10 Online:2019-07-05 Published:2019-07-05
Contact: Jian-Wei Zhang, Li-Jun Wang E-mail:zhangjw@tsinghua.edu.cn;lwan@tsinghua.edu.cn
Supported by:
Project supported by the National Key Research and Development Progress of China (Grant No. 2016YFA030210) and the Initiative Program of the State Key Laboratory of Precision Measurement Technology and Instruments, China.

摘要/Abstract

摘要：

A Cs vapor cell-based atomic clock that uses a lin||lin pumping scheme with dispersion detection is reported. This atomic clock shows potential for high performance because of its high contrast pumping scheme, and for miniaturization because of its simple architecture. The experimental setup and optimal operating parameters for the clock are introduced. The current fractional frequency stability is measured to be 1.3×10^-12√τ up to 20 s and reaches 3.1×10^-13 at 200 s. We have thoroughly investigated the related noise sources that affect clock frequency stability at the 1 s and 100 s levels. The investigation shows that the laser frequency noise limits the clock frequency stability significantly. The clock performance can be further improved by technically upgrading the laser frequency stabilization setup.

关键词: Ramsey-coherent population trapping (CPT) atomic clock, frequency stability, noise analysis

Abstract:

Key words: Ramsey-coherent population trapping (CPT) atomic clock, frequency stability, noise analysis

中图分类号: (Time and frequency)

06.30.Ft

06.20.-f (Metrology) 95.55.Sh (Auxiliary and recording instruments; clocks and frequency standards)

程鹏飞, 张建伟, 王力军. Ramsey-coherent population trapping Cs atomic clock based on lin||lin optical pumping with dispersion detection[J]. 中国物理B, 2019, 28(7): 70601-070601.

Peng-Fei Cheng(程鹏飞), Jian-Wei Zhang(张建伟), Li-Jun Wang(王力军). Ramsey-coherent population trapping Cs atomic clock based on lin||lin optical pumping with dispersion detection[J]. Chin. Phys. B, 2019, 28(7): 70601-070601.

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Ramsey-coherent population trapping Cs atomic clock based on lin||lin optical pumping with dispersion detection

Ramsey-coherent population trapping Cs atomic clock based on lin||lin optical pumping with dispersion detection

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