外文题目: Pulsed optically pumped atomic clock with zero-dead-time
作者: Lin, Haixiao; Lin, Jinda; Deng, Jianliao; Zhang, Song; Wang, Yuzhu
刊名: Rev. Sci. Instrum.
年: 2017 卷: 88 期: 12 文章编号：123103
英文关键词:

STABILITY; STANDARD
英文摘要:
By alternatively operating two pulsed optically pumped (POP) atomic clocks, the dead time in a single clock can be eliminated, and the local oscillator can be discriminated continuously. A POP atomic clock with a zero-dead-time (ZDT) method is then insensitive to the microwave phase noise. From tau = 0.01 to 1 s, the Allan deviation of the ZDT-POP clock is reduced as nearly tau(-1), which is significantly faster than tau(-1/2) of a conventional clock. During 1-40 s, the Allan deviation returns to tau(1/2). Moreover, the frequency stability of the ZDT-POP clock is improved by one order of magnitude compared with that of the conventional POP clock. We also analyze the main factors that limit the short-term frequency stability of the POP atomic clock. Published by AIP Publishing.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1063/1.5008627


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