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A 44-cm3 physics package for the high-performance pulsed optically pumped atomic clock

文献类型：期刊论文

作者Hao, Qiang2; Yang, Shaojie2; Zheng, Shuguang2; Yun, Peter1,2; Ruan, Jun1,2; Zhang, Shougang1,2
刊名REVIEW OF SCIENTIFIC INSTRUMENTS
出版日期2024-08-01
卷号95期号:8页码:8
ISSN号0034-6748
DOI10.1063/5.0219868
英文摘要The pulsed optically pumped (POP) atomic clock has demonstrated unexpected performance in terms of frequency stability and drift. However, it remains a huge challenge to make this type of atomic clock more compact. Herein, we report the design of a miniaturized physics package, which is equipped with a magnetron microwave cavity holding a vapor cell of 1.3 cm internal diameter. The Zeeman transition spectrum reveals that the microwave cavity resonates in TE011-like mode. Based on a low-noise testbed, we also quantitatively analyze the relaxation time, linewidth, and noise sources of the resulting POP atomic clock. The population and coherence relaxation time are measured to be 3.16(0.16) and 2.97(0.03) ms under the temperature of 333 K, which are compatible well with the theoretical calculation. The Ramsey signal shows a contrast of 35% and a linewidth of 192 Hz. The total volume of the physics package is about 44 cm(3), including a layer of magnetic shielding. The short-term frequency stability is measured to be 4.8 x 10(-13)tau(-1/2) (where tau is the averaging time), which is mainly limited by the relative intensity noise of the laser system.
WOS关键词RELAXATION ; CAVITY
资助项目National Natural Science Foundation of Chinahttps://doi.org/10.13039/501100001809[12173044] ; National Natural Science Foundation of China
WOS研究方向Instruments & Instrumentation ; Physics
语种英语
WOS记录号WOS:001292550200001
出版者AIP Publishing
资助机构National Natural Science Foundation of Chinahttps://doi.org/10.13039/501100001809 ; National Natural Science Foundation of Chinahttps://doi.org/10.13039/501100001809 ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of Chinahttps://doi.org/10.13039/501100001809 ; National Natural Science Foundation of Chinahttps://doi.org/10.13039/501100001809 ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of Chinahttps://doi.org/10.13039/501100001809 ; National Natural Science Foundation of Chinahttps://doi.org/10.13039/501100001809 ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of Chinahttps://doi.org/10.13039/501100001809 ; National Natural Science Foundation of Chinahttps://doi.org/10.13039/501100001809 ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://210.72.145.45/handle/361003/14481]  
专题国家授时中心_量子频标研究室
通讯作者Hao, Qiang
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Natl Time Serv Ctr, Key Lab Time Reference & Applicat, Xian 710600, Peoples R China
推荐引用方式
GB/T 7714		 Hao, Qiang,Yang, Shaojie,Zheng, Shuguang,et al. A 44-cm3 physics package for the high-performance pulsed optically pumped atomic clock[J]. REVIEW OF SCIENTIFIC INSTRUMENTS,2024,95(8):8.
APA Hao, Qiang,Yang, Shaojie,Zheng, Shuguang,Yun, Peter,Ruan, Jun,&Zhang, Shougang.(2024).A 44-cm3 physics package for the high-performance pulsed optically pumped atomic clock.REVIEW OF SCIENTIFIC INSTRUMENTS,95(8),8.
MLA Hao, Qiang,et al."A 44-cm3 physics package for the high-performance pulsed optically pumped atomic clock".REVIEW OF SCIENTIFIC INSTRUMENTS 95.8(2024):8.

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