A Cavity-cell Assembly of Rubidium Frequency Standard Based on a Non-standard Rectangular Microwave Cavity

doi:10.11938/cjmr20202866

Abstract

Abstract:

To meet the requirement of ultra-thin rubidium frequency standard, we developed a non-standard rectangular cavity based on the slotted-tube microwave cavity with 12 mm thickness and a field orientation factor of about 0.9. The data set of ⁸⁷Rb double-resonance signals of the cavity-cell assembly was measured. The results showed that the intrinsic linewidth is about 452 Hz. With the optimized experimental parameters, the cavity-cell assembly has a potential short-term stability of 5.2×10^-13τ^-1/2 limited by the shot noise.

Key words: rubidium frequency standard, non-standard rectangular microwave cavity, frequency stability, cavity-cell assembly

CLC Number:

O482.53

Han LI,Song-bai KANG,Peng-fei WANG,Feng ZHAO. A Cavity-cell Assembly of Rubidium Frequency Standard Based on a Non-standard Rectangular Microwave Cavity[J]. Chinese Journal of Magnetic Resonance, 2021, 38(2): 249-254.

Figures/Tables 6

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References 13

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