• Chinese Optics Letters
  • Vol. 20, Issue 12, 120201 (2022)
Yaqin Hao, Yuan Yao*, Haosen Shi, 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/COL202220.120201 Cite this Article Set citation alerts
    Yaqin Hao, Yuan Yao, Haosen Shi, Hongfu Yu, Yanyi Jiang, Longsheng Ma, "Frequency control of a lattice laser at 759 nm by referencing to Yb clock transition at 578 nm," Chin. Opt. Lett. 20, 120201 (2022) Copy Citation Text show less

    Abstract

    We present the frequency control of a 759 nm laser as a lattice laser for an ytterbium (Yb) optical clock. The frequency stability and accuracy are transferred from the Yb optical clock via an optical frequency comb. Although the comb is frequency-stabilized on a rubidium microwave clock, the frequency instability of the 759 nm laser is evaluated at the 10-15 level at 1 s averaging time. The frequency of the 759 nm laser is controlled with an uncertainty within 1 Hz by referencing to the Yb clock transition. Such a frequency-controlled 759 nm laser is suitable for Yb optical clocks as the lattice laser. The technique of laser frequency control can be applied to other lasers in optical clocks.
    fb578=ν578fCEON1fr,

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    fb759=ν759fCEON2fr,

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    fb578*=ν578N1fr,

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    fb759*=ν759N2fr.

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    M1/N1=M2/N2.

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    Δ=ν578/M1ν759/M2.

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    ν759=M2×(νclock/M1Δ),

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    Yaqin Hao, Yuan Yao, Haosen Shi, Hongfu Yu, Yanyi Jiang, Longsheng Ma, "Frequency control of a lattice laser at 759 nm by referencing to Yb clock transition at 578 nm," Chin. Opt. Lett. 20, 120201 (2022)
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