文献类型：期刊文献

英文题名：Estimation of instability induced by probe laser frequency noise in cold-atom microwave clocks

作者：Yang, Bowen[1,2,3];Zhao, Haojie[1,2,3];Xiao, Ling[1,2];Li, Xiaolin[4];Deng, Jianliao[1,2];Cheng, Huadong[1,2,3]

机构：[1]Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Quantum Opt, Shanghai 201800, Peoples R China;[2]Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Ctr Cold Atom Phys, Shanghai 201800, Peoples R China;[3]Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China;[4]East China Univ Sci & Technol, Sch Phys, Shanghai, Peoples R China

年份：2023

卷号：40

期号：7

起止页码：1674

外文期刊名：JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS

收录：;EI(收录号：20233114468172);WOS:【SCI-EXPANDED(收录号:WOS:001033671300005)】；

基金：Funding. National Natural Science Foundation of China (12174409, 61835013,61875215) .

语种：英文

外文关键词：Atom lasers - Atomic clocks - Differential equations - Frequency estimation - Frequency standards - Spectral density

摘要：The influence of laser frequency noise on the stability of a compact cold-atom microwave clock was investigated theoretically in this study. The phase-noisy laser was characterized by a phase-diffusion field. Given the laser linewidth, the analytical expressions of the atomic covariance function and the noise power spectral density of the relative intensity noise transferred from the frequency noise were derived based on stochastic differential equations. Our results provide an effective method to estimate the impact of laser frequency noise on the stability of an integrating sphere cold atomic clock. This method can be extended to other cold atom detection cases. & COPY; 2023 Optica Publishing Group