Improved rubidium atomic beam clock based on lamp-pumping and fluorescence-detection scheme

Wang, Y. H.; Huang, Jiayao; Gu, Y. J.; Liu, S. Q.; Tai-Qian, Dong; Lü, Zhipeng

doi:10.2971/jeos.2011.11005

Cited by 20 publications

(3 citation statements)

References 12 publications

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“…[8], we proposed the scheme based on lamppumping and fluorescence-detection. Here we briefly summarize the main changes in comparison with Arditi et al design.…”

Section: Operation As An Atomic Clockmentioning

confidence: 99%

Proposal of rubidium atomic beam clock based on lamp pumped and fluorescence detection

Wang

Huang

et al. 2011

2011 Joint Conference of the IEEE International Frequency Control and the European Frequency and Time Forum (FCS) Proceedings

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A compact, portable rubidium atomic beam clock based on lamp pumped and fluorescence detection scheme is proposed. The expected short-term frequency stability can be more than two orders of magnitude better than previous experimental results. The usages of lamp pumping, fluorescence detection and microwave slow-wave resonance structures make this design robust and compact. The shortcomings will be discussed too.

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“…[8], we proposed the scheme based on lamppumping and fluorescence-detection. Here we briefly summarize the main changes in comparison with Arditi et al design.…”

Section: Operation As An Atomic Clockmentioning

confidence: 99%

Proposal of rubidium atomic beam clock based on lamp pumped and fluorescence detection

Wang

Huang

et al. 2011

2011 Joint Conference of the IEEE International Frequency Control and the European Frequency and Time Forum (FCS) Proceedings

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“…[1,2] The normal SAS is very useful for high resolution spectroscopy, but can also be unsatisfactory in other applications. For example, in an optically pumped rubidium beam frequency standard, [3] the detection laser is stabilized on the transition from F = 2 to F = 3 of the 87 Rb D 2 resonance line, but there are six peaks at the same time when the SAS method is used. Some groups proposed to shift or eliminate the close crossover peak with two lasers to avoid the influence of these undesired peaks.…”

Section: Introductionmentioning

confidence: 99%

Laser frequency locking based on the normal and abnormal saturated absorption spectroscopy of ⁸⁷ Rb

2016

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We present a practical method to avoid the mis-locking phenomenon in the saturated-absorption-spectrum laserfrequency-locking system and set up a simple theoretical model to explain the abnormal saturated absorption spectrum. The method uses the normal and abnormal saturated absorption spectra of the same transition 5 2 S 1/2 , F = 2-5 2 P 3/2 , F = 3 saturated absorption of the 87 Rb D 2 resonance line. After subtracting these two signals with the help of electronics, we can obtain a spectrum with a single peak to lock the laser. In our experiment, we use the normal and inverse signals of the transitions 5 2 S 1/2 , F = 2-5 2 P 3/2 , F = 3 saturated absorption of the 87 Rb D 2 resonance line to lock a 780-nm distributed feedback (DFB) diode laser. This method improves the long-term locking performance and is suitable for other kinds of diode lasers.

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“…To avoid the mislocking problem of lasers, we prepare rubidium lamps as an alternative light source. [8] However, as the narrow line width of the laser helps to reduce detection noise, the laser is the first choice in this experiment.…”

Section: Introduction 1optically-pumped Rubidium Beam Clockmentioning

confidence: 99%

Design and test of the microwave cavity in an optically-pumped Rubidium beam frequency standard

Liu¹,

Wang²

2015

Chinese Phys. B

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We are developing a compact rubidium atomic beam frequency standard with optical pumping and detection. The cavity for microwave interrogation is an important part of the clock. The cavity in our design is a Ramsey-type, E-bend one, which is the same as the conventional method in most cesium beam clocks. Requirements for the design are proposed based on the frequency shift associated with the cavity. The basic structure of the cavity is given by theoretical analysis and detailed dimensions are determined by means of electromagnetic field simulation with the help of commercial software. The cavity is manufactured and fabricated successfully. The preliminary test result of the cavity is given, which is in good agreement with the simulation. The resonant frequency is 6.835 GHz, equal to the clock transition frequency of 87 Rb, and the loaded quality factor is 500. These values are adjustable with posts outside the cavity. Estimations on the Ramsey line width and several frequency shifts are made.

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Improved rubidium atomic beam clock based on lamp-pumping and fluorescence-detection scheme

Cited by 20 publications

References 12 publications

Proposal of rubidium atomic beam clock based on lamp pumped and fluorescence detection

Proposal of rubidium atomic beam clock based on lamp pumped and fluorescence detection

Laser frequency locking based on the normal and abnormal saturated absorption spectroscopy of ⁸⁷ Rb

Design and test of the microwave cavity in an optically-pumped Rubidium beam frequency standard

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Improved rubidium atomic beam clock based on lamp-pumping and fluorescence-detection scheme

Cited by 20 publications

References 12 publications

Proposal of rubidium atomic beam clock based on lamp pumped and fluorescence detection

Proposal of rubidium atomic beam clock based on lamp pumped and fluorescence detection

Laser frequency locking based on the normal and abnormal saturated absorption spectroscopy of 87 Rb

Design and test of the microwave cavity in an optically-pumped Rubidium beam frequency standard

Contact Info

Product

Resources

About

Laser frequency locking based on the normal and abnormal saturated absorption spectroscopy of ⁸⁷ Rb