Laser locking to the ~(199)Hg ~1S_0 - ~3P_0 clock transition with 5.4 × 10~(-15)/(τ)~(1/2) fractional frequency instability

J. J. McFerran; D. V. Magalhaes; C. Mandache; J. Millo; W. Zhang; Y. Le Coq; G. Santarelli; S. Bize

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Laser locking to the ~(199)Hg ~1S_0 - ~3P_0 clock transition with 5.4 × 10~(-15)/(τ)~(1/2) fractional frequency instability

机译：激光锁定到〜（199）Hg〜1S_0-〜3P_0时钟跃迁，分数为5.4×10〜（-15）/（τ）〜（1/2）

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With ~(199)Hg atoms confined in an optical lattice trap in the Lamb-Dicke regime, we obtain a spectral line at 265.6 nm for which the FWHM is ～15 Hz. Here we lock an ultrastable laser to this ultranarrow ~1S_0 - ~3P_0 clock transition and achieve a fractional frequency instability of 5.4 × 10~(-15)/(τ)~(1/2) for τ ≤ 400 s. The highly stable laser light used for the atom probing is derived from a 1062.6 nm fiber laser locked to an ultrastable optical cavity that exhibits a mean drift rate of -6.0 × 10~(-17) s~(-1) (-16.9 mHzs~(-1) at 282 THz) over a six month period. A comparison between two such lasers locked to independent optical cavities shows a flicker noise limited fractional frequency instability of 4 × 10~(-16) per cavity.

机译：在Lamb-Dicke态下，将〜（199）Hg原子限制在一个光学晶格陷阱中，我们获得了265.6 nm的光谱线，其FWHM为〜15 Hz。在这里，我们将超稳定的激光器锁定到这种狭窄的〜1S_0-〜3P_0时钟跃迁，并在τ≤400 s内实现5.4×10〜（-15）/（τ）〜（1/2）的分数频率不稳定性。用于原子探测的高度稳定的激光来自锁定在超稳定光学腔上的1062.6 nm光纤激光器，该平均腔的平均漂移率为-6.0×10〜（-17）s〜（-1）（-16.9 mHzs）在六个月的时间内达到282 THz的〜（-1）。锁定在独立光学腔上的两个此类激光器的比较显示，每个腔的闪烁噪声限制的分数频率不稳定性为4×10〜（-16）。

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《Optics Letters》 |2012年第17期|共3页
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J. J. McFerran; D. V. Magalhaes; C. Mandache; J. Millo; W. Zhang; Y. Le Coq; G. Santarelli; S. Bize;
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专利

1. Laser locking to the ~(199)Hg ~1S_0 - ~3P_0 clock transition with 5.4 × 10~(-15)/(τ)~(1/2) fractional frequency instability [J] . J. J. McFerran, D. V. Magalhaes, C. Mandache, Optics Letters . 2012,第17期

机译：激光锁定到〜（199）Hg〜1S_0-〜3P_0时钟跃迁，分数为5.4×10〜（-15）/（τ）〜（1/2）
2. Evaluation of the frequency instability limited by Dick effect in the microwave 199Hg+ trapped-ion clock [J] . Yi-He Chen, Lei She, Man Wang, 中国物理：英文版 . 2016,第012期

机译：微波199Hg +俘获离子时钟中受迪克效应限制的频率不稳定性的评估
3. Frequency Ratio of Hg-199 and Sr-87 Optical Lattice Clocks beyond the SI Limit [J] . Yamanaka Kazuhiro, Ohmae Noriaki, Ushijima Ichiro, Physical review letters . 2015,第23期

机译：Hg-199和Sr-87光学晶格时钟的频率比超出SI限制
4. LNE-SYRTE CLOCK ENSEMBLE: NEW ~(87)Rb HYPERFINE FREQUENCY MEASUREMENT - SPECTROSCOPY OF ~(199)Hg AND ~(201)Hg OPTICAL CLOCK TRANSITION [C] . M. PETERSEN, J. MILLO, D. V. MAGALHAES, International Symposium on Frequency Standards and Metrology . 2009

机译：LNE-SYRTE CLOCK ENALELE：新〜（87）rb高渗频率测量 - 光谱〜（199）Hg和〜（201）Hg光学时钟过渡
5. Frequency stabilization of a 1092-nm diode-pumped fiber laser and a 1033-nm external cavity diode laser for use in an optical atomic clock based on a strontium-88 single ion. [D] . Humphrey, Gideon. 2010

机译：用于基于锶88单离子的光学原子钟中使用的1092 nm二极管泵浦光纤激光器和1033 nm外腔二极管激光器的频率稳定性。
6. Laser locking to the 199Hg clock transition with 5.4x10^(-15)/sqrt(tau) fractional frequency instability [O] . McFerran, J. J., Magalhaes, D. V., Mandache, C., 2012

机译：激光锁定到199Hg时钟转换，5.4x10 ^（ - 15）/ sqrt（tau）分数频率不稳定

Laser locking to the ~(199)Hg ~1S_0 - ~3P_0 clock transition with 5.4 × 10~(-15)/(τ)~(1/2) fractional frequency instability

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