• Chinese Optics Letters
  • Vol. 18, Issue 7, 070201 (2020)
Yuxin Sun, Yuan Yao*, Yaqin Hao, Hongfu Yu..., Yanyi Jiang** and Longsheng Ma|Show fewer author(s)
Author Affiliations
  • State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China
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    DOI: 10.3788/COL202018.070201 Cite this Article Set citation alerts
    Yuxin Sun, Yuan Yao, Yaqin Hao, Hongfu Yu, Yanyi Jiang, Longsheng Ma, "Laser stabilizing to ytterbium clock transition with Rabi and Ramsey spectroscopy," Chin. Opt. Lett. 18, 070201 (2020) Copy Citation Text show less

    Abstract

    A cavity-stabilized 578 nm laser is used to probe the clock transition of ytterbium atoms trapped in optical lattice sites. We obtain a Fourier-limited 4.2-Hz-linewidth Rabi spectrum and a Ramsey spectrum with fringe linewidth of 3.3 Hz. Based on one of the spectra, the 578 nm laser light is frequency-stabilized to the center of the transition to achieve a closed-loop operation of an optical clock. Based on interleaved measurement, the frequency instability of a single optical clock is demonstrated to be 5.4 × 10-16/√τ.
    σQPN(τ)1πQTcNτ,(1)

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    σDick2=1τk=1(gkg0)2SLO(kTc),(2)

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    Yuxin Sun, Yuan Yao, Yaqin Hao, Hongfu Yu, Yanyi Jiang, Longsheng Ma, "Laser stabilizing to ytterbium clock transition with Rabi and Ramsey spectroscopy," Chin. Opt. Lett. 18, 070201 (2020)
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