高精度冷原子干涉仪集成化光学系统的设计 (封面文章）

doi:10.3969/j.issn.1007-5461.2024.05.006

量子电子学报 ›› 2024, Vol. 41 ›› Issue (5): 761-771.doi: 10.3969/j.issn.1007-5461.2024.05.006

高精度冷原子干涉仪集成化光学系统的设计 (封面文章）

葛贵国1,2, 方杰1, 何萌1,2, 李金庭1,2, 张胆放1,2, 陈曦1*, 仲嘉琪1, 张小伟1, 王谨1,3,4*, 詹明生1,3,4

( 1 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; 3 合肥国家实验室, 安徽合肥 230094; 4 武汉量子技术研究院, 湖北武汉 430206 )

收稿日期:2023-03-15 修回日期:2023-04-27 出版日期:2024-09-28 发布日期:2024-09-28
通讯作者: E-mail:chenxi@apm.ac.cn; wangjin@apm.ac.cn E-mail:E-mail:chenxi@apm.ac.cn; wangjin@apm.ac.cn
作者简介:葛贵国 ( 1994 - ), 山东菏泽人, 博士生, 主要从事原子干涉仪重力仪方面的研究。E-mail: geguiguo@apm.ac.cn
基金资助:
国家重点研发计划 (2017YFC0601602), 科技创新2030"量子通信与量子计算机"重大项目 (2021ZD0300603), 中国博士后科学基金面上资助 (2020M672453)

Design of integrated optical system for high‑precision cold atom interferometer

GE Guiguo1,2 , FANG Jie 1 , HE Meng1,2 , LI Jinting1,2 , ZHANG Danfang1,2 , CHEN Xi 1*, ZHONG Jiaqi 1 , ZHANG Xiaowei 1 , WANG Jin1,3,4*, ZHAN Mingsheng1,3,4

( 1 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; 3 Hefei National Laboratory, Hefei 230094, China; 4 Wuhan Institute of Quantum Technology, Wuhan 430206, China )

Received:2023-03-15 Revised:2023-04-27 Published:2024-09-28 Online:2024-09-28

摘要/Abstract

摘要： 设计并实现了用于85Rb 冷原子干涉仪的集成化光学系统。整个光学系统的外包络尺寸为 400 mm × 483 mm × 133 mm, 分为五个独立的模块, 模块之间通过光纤连接, 这种集成化、模块化的光路系统有利于原子干涉仪进一步工程化、小型化。该系统采用主动温控措施来改善光学系统的稳定性，使激光光强的长期稳定度达到 4.3 × 10-3 @5000 s。将该光学系统应用于原子干涉仪, 获得了自由演化时间为71 ms、对比度为20%的干涉条纹, 单个条纹相位不确定度约为22 mrad, 对应的重力测量不确定度为26 μGal。该光学系统的设计与实现为原子干涉仪的小型化与实际应用奠定了基础。

关键词: 原子光学, 原子干涉仪, 光学系统, 稳定性, 集成化

Abstract: An integrated optical system for cold 85Rb atom interferometer is designed and implemented in this work. The system includes five fiber-connected modules, and the size of the entire optical system is only 400 mm × 483 mm × 133 mm. This integrated and modular optical system is beneficial for further engineering and miniaturization of atomic interferometers. An active temperature control method is adopted to improve the stability of the optical system, and the long-term stability of laser intensity reaches 4.3 × 10-3 @5000 s. This optical system has been successfully applied to an atom interferometer, and the interference fringes with a free evolution time of 71 ms and a contrast of 20% are obtained. The phase uncertainty of a single fringe is 22 mrad, and the corresponding gravitational measurement uncertainty is 26 μGal. The design and implementation of this optical system lays the foundation for the miniaturization and practical application of atom interferometers.

Key words: atomic optics, atom interferometer, optical system, stability, integrated design

中图分类号:

O431.2

葛贵国, 方杰, 何萌, 李金庭, 张胆放, 陈曦, 仲嘉琪, 张小伟, 王谨, 詹明生, . 高精度冷原子干涉仪集成化光学系统的设计 (封面文章）[J]. 量子电子学报, 2024, 41(5): 761-771.

GE Guiguo, , FANG Jie , HE Meng, , LI Jinting, , ZHANG Danfang, , CHEN Xi , ZHONG Jiaqi , ZHANG Xiaowei , WANG Jin, ZHAN Mingsheng, . Design of integrated optical system for high‑precision cold atom interferometer[J]. Chinese Journal of Quantum Electronics, 2024, 41(5): 761-771.

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高精度冷原子干涉仪集成化光学系统的设计 (封面文章）

Design of integrated optical system for high‑precision cold atom interferometer

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