Rubidium chip-scale atomic clock with improved long-term stability   through light intensity optimization and compensation for laser   frequency detuning

doi:10.1364/JOSAB.33.001756

CORC > 北京大学 > 信息科学技术学院

	Rubidium chip-scale atomic clock with improved long-term stability through light intensity optimization and compensation for laser frequency detuning
	Zhang, Yaolin ; Yang, Wanpeng ; Zhang, Shuangyou ; Zhao, Jianye
刊名	JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
	2016
关键词	STANDARD SHIFT REFERENCES RESONANCES EMISSION RB-87 CPT
DOI	10.1364/JOSAB.33.001756
英文摘要	We demonstrate the implementation of a Rb-87 chip-scale atomic clock (CSAC) that has improved long-term stability. A simple method of reducing the frequency drift in the CSAC is proposed. As well as the well-known effect of light intensity on the clock frequency, our analysis shows that the frequency drift that is due to laser frequency detuning (LFD) variation originates from asymmetry in the coherent laser fields, and thus, we propose to actively compensate the clock frequency by using variations in the light intensity and LFD. We performed experiments to obtain precise clock frequency sensitivities to the light intensity and LFD, and the frequency drift was reduced from 7.1 x 10(-11)/day to 6.9 x 10(-13)/day with the frequency compensation method. Additionally, the CSAC with an optimized configuration of light intensity and microwave power showed evident long-term frequency stability improvement, from 8.9 x 10(-11) to 8.7 x 10(-12) at 10(5) s. Therefore, our method is useful in reducing the frequency drift of CSACs and could be potentially used in applications that require moderate long-term stability of sub-1 x 10(-11). (C) 2016 Optical Society of America; National Natural Science Foundation of China (NSFC) [61535001, 61371074]; SCI(E); EI; ARTICLE; zhaojianye@pku.edu.cn; 8; 1756-1763; 33
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/491753]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Zhang, Yaolin,Yang, Wanpeng,Zhang, Shuangyou,et al. Rubidium chip-scale atomic clock with improved long-term stability through light intensity optimization and compensation for laser frequency detuning[J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS,2016.
APA	Zhang, Yaolin,Yang, Wanpeng,Zhang, Shuangyou,&Zhao, Jianye.(2016).Rubidium chip-scale atomic clock with improved long-term stability through light intensity optimization and compensation for laser frequency detuning.JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS.
MLA	Zhang, Yaolin,et al."Rubidium chip-scale atomic clock with improved long-term stability through light intensity optimization and compensation for laser frequency detuning".JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS (2016).