A Lamp-Pumped Rubidium Atomic Frequency Standard with a Short-Term Stability at the Level of 2 × 10−13τ−1/2

Wang, Pengfei; Qiu, Zijing; Zhang, Feng; Feng, Qi; Ming, Gang; Wang, Fang; Niu, Xiumei; Kang, Shuai; Mei, Ganghua

doi:10.1007/978-981-13-7751-8_53

Cited by 3 publications

(4 citation statements)

References 4 publications

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“…In 2016, Hao et al designed a desk RAFS system with a stability of 2.410 -13 τ -1/2 [7]. In 2019, Nie et al integrated the system into a whole RAFS unit, and a stability of 210 -13 τ -1/2 was achieved [8]. In 2022, we reported a RAFS with stability of 1.5×10 -13 τ -1/2 [9].…”

Section: Introductionmentioning

confidence: 91%

Realization of a Rubidium Atomic Frequency Standard With Short-Term Stability in 10⁻¹⁴ τ ^−1/2 Level

Cui,

Ming,

Wang

et al. 2024

IEEE Trans. Instrum. Meas.

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Lamp-pumped rubidium atomic frequency standard (RAFS) is one of the most commonly utilized atomic frequency standards. Over the past few decades, the RAFS's frequency stability performance has improved rapidly, and the best one has been in the 10 -13 τ -1/2 level. In this article, we demonstrate a RAFS with stability in the 10 -14 τ -1/2 level for the first time. In design of the physics package, a rubidium spectral lamp with Xe as the starter gas was used as the pumping light source. The light was filtered by using optical and isotope double-filtering technique. A large slotted tube microwave cavity and a rubidium absorption cell with a diameter of 40 mm were utilized to enhance the atomic discrimination signal. A sealed box was designed for the physics package to isolate it from the barometric environment. A low phase noise 6.834xx GHz microwave was employed to interrogate the rubidium clock transition. Based on quantitative analysis of the signal-to-noise ratio of the atomic discrimination signal and the phase noise of the interrogation microwave, the stability of the RAFS was predicted to be 7.6×10 -14 τ -1/2 . The short-term stability of the RAFS was measured by using a hydrogen maser and an optical microwave generator as references, results are 9.0×10 -14 τ -1/2 (1 ~ 100 s) and 9.1×10 -14 τ -1/2 (1 ~ 100 s) respectively. The measured results are in agreement with the predicted one.

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Section: Introductionmentioning

confidence: 91%

Realization of a Rubidium Atomic Frequency Standard With Short-Term Stability in 10⁻¹⁴ τ ^−1/2 Level

Cui,

Ming,

Wang

et al. 2024

IEEE Trans. Instrum. Meas.

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“…北斗三号星载铷原子钟设计做了两项改进. 径微波腔也实现了初步应用 [8,15] . 图 7 散弹噪声、交调噪声和物理环境效应对甚高精度铷原子钟频率稳定度的影响铷原子钟系统, 短稳达到优于2.5×10 −13 /τ 1/2 水平 [8,15] .…”

Section: 钟跃迁信号强度正比于钟跃迁能级反转布居数差和跃迁几率前者由光抽运效率决定后者则由微波腔unclassified

“…径微波腔也实现了初步应用 [8,15] . 图 7 散弹噪声、交调噪声和物理环境效应对甚高精度铷原子钟频率稳定度的影响铷原子钟系统, 短稳达到优于2.5×10 −13 /τ 1/2 水平 [8,15] . 利用数字电路设计微波链, 可将相位噪声对铷原子钟稳定度的影响降至10 −14 /τ 1/2 量级 [16,17] .…”

Section: 钟跃迁信号强度正比于钟跃迁能级反转布居数差和跃迁几率前者由光抽运效率决定后者则由微波腔unclassified

Characteristics of the space-borne rubidium atomic clocks for the BeiDou III navigation satellite system

Mei

Zhang

Feng

et al. 2020

Sci. Sin.-Phys. Mech. Astron.

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“…Glass cells containing atomic vapor of neutral atoms are commonly employed in spectroscopy experiments and have potential applications in metrology, ranging from frequency standard [1][2][3] to atomic clocks [4,5]. As the cell has smaller size comparing to bulk science chamber used in atomic physics experiment, there are several works that integrate the vapor glass cells with atom chip technology [6,7] to enable the development of compact and portable atomic sensors with enhanced sensitivity [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

The effect of temperature on absorbance of rubidium atoms in a vapor glass cell

Kaewko,

Parkprom,

Ketaiam

et al. 2023

J. Phys.: Conf. Ser.

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Glass cells containing neutral atoms are commonly employed in spectroscopy experiments and have potential applications in metrology. The temperature of the vapor plays a vital role as it directly influences the absorption rate of rubidium atoms. In this research, we study the effect of vapor temperature on the absorption spectrum of rubidium atoms. We observed the broadening of the spectral line and increased absorption, enabling us to determine the absorbance of atoms within the cell. These results provide valuable insights for our future work to characterize absorbance of homemade vapor cells for portable quantum device applications.

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A Lamp-Pumped Rubidium Atomic Frequency Standard with a Short-Term Stability at the Level of 2 × 10−13τ−1/2

Cited by 3 publications

References 4 publications

Realization of a Rubidium Atomic Frequency Standard With Short-Term Stability in 10⁻¹⁴ τ ^−1/2 Level

Realization of a Rubidium Atomic Frequency Standard With Short-Term Stability in 10⁻¹⁴ τ ^−1/2 Level

Characteristics of the space-borne rubidium atomic clocks for the BeiDou III navigation satellite system

The effect of temperature on absorbance of rubidium atoms in a vapor glass cell

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A Lamp-Pumped Rubidium Atomic Frequency Standard with a Short-Term Stability at the Level of 2 × 10−13τ−1/2

Cited by 3 publications

References 4 publications

Realization of a Rubidium Atomic Frequency Standard With Short-Term Stability in 10−14 τ −1/2 Level

Realization of a Rubidium Atomic Frequency Standard With Short-Term Stability in 10−14 τ −1/2 Level

Characteristics of the space-borne rubidium atomic clocks for the BeiDou III navigation satellite system

The effect of temperature on absorbance of rubidium atoms in a vapor glass cell

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Realization of a Rubidium Atomic Frequency Standard With Short-Term Stability in 10⁻¹⁴ τ ^−1/2 Level

Realization of a Rubidium Atomic Frequency Standard With Short-Term Stability in 10⁻¹⁴ τ ^−1/2 Level