一种基于非标准矩形微波腔的铷频标腔泡系统

doi:10.11938/cjmr20202866

波谱学杂志 ›› 2021, Vol. 38 ›› Issue (2): 249-254.doi: 10.11938/cjmr20202866

一种基于非标准矩形微波腔的铷频标腔泡系统

李菡^1,²,康松柏¹,王鹏飞¹,赵峰^1,*()

1. 中国科学院原子频标重点实验室(中国科学院精密测量科学与技术创新研究院), 湖北武汉 430071
2. 中国科学院大学, 北京 100049

收稿日期:2020-10-14 出版日期:2021-06-05 发布日期:2020-12-31
通讯作者: 赵峰 E-mail:zf_lucky@apm.ac.cn
基金资助:
创建国家科技创新平台项目资助(2018011005132289)

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

Han LI^1,²,Song-bai KANG¹,Peng-fei WANG¹,Feng ZHAO^1,*()

1. CAS Key Laboratory of Atomic Frequency Standards (Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences), Wuhan 430071, China
2. University of Chinese Academy of Sciences, Beijing 100049, China

Received:2020-10-14 Online:2021-06-05 Published:2020-12-31
Contact: Feng ZHAO E-mail:zf_lucky@apm.ac.cn

摘要/Abstract

摘要：

针对超薄型铷频标应用需求，本文研制了一种基于开槽管腔原理的非标准矩形微波腔.它的厚度仅为12 mm，仿真结果显示其微波场方向因子约为0.9.测量了基于该微波腔设计的腔泡系统的⁸⁷Rb原子双共振跃迁信号，并通过外推法得到铷原子吸收泡内双共振谱线的本征线宽约为452 Hz.在优化后的实验参数下，该腔泡系统散弹噪声对铷频标短期频率稳定度的限制可达到5.2×10^-13τ^-1/2.

关键词: 铷频标, 非标准矩形微波腔, 频率稳定度, 腔泡系统

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

中图分类号:

O482.53

李菡,康松柏,王鹏飞,赵峰. 一种基于非标准矩形微波腔的铷频标腔泡系统[J]. 波谱学杂志, 2021, 38(2): 249-254.

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.

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参考文献 13

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一种基于非标准矩形微波腔的铷频标腔泡系统

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

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