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脉冲光抽运原子钟原子相位反馈研究

Research on Atomic Phase Feedback in Pulsed Optically Pumped Atomic Clocks

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摘要

在基于Ramsey作用的原子钟里,受限于原子的相干时间及晶振的相位噪声,自由演化时间不能太长。提出了大失谐光无破坏测量方法,利用该方法获取了原子相位数据,并将其反馈到微波相位上,从而实现了原子相位反馈,有效地延长了自由演化时间。分别从理论和实验上验证了这种周期性反馈作用的可行性。

Abstract

In the atomic clocks based on the Ramsey process, the free evolution time cannot be very long which is limited by the coherent time of atoms and the phase noise of crystal oscillation. The non-destruction detection method with a large-detuning light is proposed. The atom phase data are obtained with this method and fed back to the microwave phase, which contributes to the realization of the atomic phase feedback and the effective prolonging of the free evolution time. The feasibility of such a periodical feedback is verified by the theory and experiment, respectively.

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中图分类号:O431.2

DOI:10.3788/aos201737.0702001

所属栏目:原子与分子物理

基金项目:国家自然科学基金(91536220,11504393)

收稿日期:2017-03-01

修改稿日期:2017-03-20

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作者单位    点击查看

董功勋:中国科学院上海光学精密机械研究所量子光学重点实验室, 上海 201800中国科学院大学, 北京 100049
林锦达:中国科学院上海光学精密机械研究所量子光学重点实验室, 上海 201800
张 松:中国科学院上海光学精密机械研究所量子光学重点实验室, 上海 201800
邓见辽:中国科学院上海光学精密机械研究所量子光学重点实验室, 上海 201800
王育竹:中国科学院上海光学精密机械研究所量子光学重点实验室, 上海 201800

联系人作者:董功勋(behrman.1990@siom.ac.cn)

备注:董功勋(1990-),男,博士研究生,主要从事原子钟方面的研究。

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引用该论文

Dong Gongxun,Lin Jinda,Zhang Song,Deng Jianliao,Wang Yuzhu. Research on Atomic Phase Feedback in Pulsed Optically Pumped Atomic Clocks[J]. Acta Optica Sinica, 2017, 37(7): 0702001

董功勋,林锦达,张 松,邓见辽,王育竹. 脉冲光抽运原子钟原子相位反馈研究[J]. 光学学报, 2017, 37(7): 0702001

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