Frequency stability of a pulsed optically pumped atomic clock with narrow Ramsey linewidth

Lin Haixiao; Deng Jianliao; Lin Jinda; Zhang Song; Wang Yuzhu

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Frequency stability of a pulsed optically pumped atomic clock with narrow Ramsey linewidth

机译：脉冲光学泵浦原子钟的频率稳定性，窄Ramsey线宽

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In general, the linewidth of the Ramsey central fringe (RCF) is equal to 1/(2T), where T is the Ramsey free-evolution time. We demonstrate that the RCF linewidth of a pulsed optically pumped (POP) atomic clock with orthogonal polarization detection based on the magneto-optical rotation effect can be narrowed down to 1/(4T). The Allan deviation of the POP atomic clock decreases from 2.4 x 10(-13)tau(-1/2) to 1.4 x 10(-13)tau(-1/2). This corresponds to an improvement in the frequency stability by about 60%. We also estimate the main noise sources that limit the short-term frequency stability of the POP atomic clock. (C) 2018 Optical Society of America

机译：通常，Ramsey Central Fringe（RCF）的线宽等于1 /（2T），其中T是Ramsey自由演进时间。我们证明，基于磁光旋转效果的脉冲光学泵浦（POP）原子时钟的RCF线宽可以缩小到1 /（4T）的正交偏振检测。 POP原子时钟的Allan偏差从2.4 x 10（-13）Tau（-1/2）到1.4 x 10（-13）Tau（-1/2）减少。这对应于频率稳定性的改善约60％。我们还估计了限制流行原子钟的短期频率稳定性的主要噪声源。（c）2018年光学学会

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来源
《Applied optics》 |2018年第12期|共5页
作者
Lin Haixiao; Deng Jianliao; Lin Jinda; Zhang Song; Wang Yuzhu;
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Chinese Acad Sci Shanghai Inst Opt &

Fine Mech Key Lab Quantum Opt Shanghai 201800 Peoples R China;

Chinese Acad Sci Shanghai Inst Opt &

Fine Mech Key Lab Quantum Opt Shanghai 201800 Peoples R China;

Chinese Acad Sci Shanghai Inst Opt &

Fine Mech Key Lab Quantum Opt Shanghai 201800 Peoples R China;

Chinese Acad Sci Shanghai Inst Opt &

Fine Mech Key Lab Quantum Opt Shanghai 201800 Peoples R China;

Chinese Acad Sci Shanghai Inst Opt &

Fine Mech Key Lab Quantum Opt Shanghai 201800 Peoples R China;

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Frequency stability of a pulsed optically pumped atomic clock with narrow Ramsey linewidth

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