用于里德堡原子高精度微波电场测量的小型化激光系统设计与实现  

Realization of Laser System for Precision Measurement of Microwave Electric Field Using Rydberg Atoms

作　　者：成永杰 靳刚 刘星汛 齐万泉 何军[2,3] CHENG Yong-jie;JIN Gang;LIU Xing-xun;QI Wan-quan;HE Jun(Beijing Institute of Radio Metrology and Measurement,Beijing 100039,China;State Key Laboratory of Quantum Optics and Quantum Optics Devices,Institute of Opto-Electronics,Taiyuan 030006,China;Collaborative Innovation Center of Extreme Optics of the Ministry of Education and Shanxi Province,Shanxi University,Taiyuan 030006,China)

机构地区：[1]北京无线电计量测试研究所,北京100039 [2]山西大学光电研究所,量子光学与光量子器件国家重点实验室,山西太原030006 [3]山西大学,教育部山西省省部共建极端光学协同创新中心,山西太原030006

出　　处：《宇航计测技术》2021年第1期48-52,共5页Journal of Astronautic Metrology and Measurement

摘　　要：基于里德堡原子量子相干效应的微波电场测量灵敏度高、动态范围大、测量不确定度小,有望成为新一代可直接溯源至国际单位制(SI)的微波电场基准。本文介绍了一种可用于铯原子里德堡态激发的小型化绿光激光系统。该激光系统采用Littorw型光栅外腔反馈结构,实现了输出功率大于80mW的单频509nm绿光激光。利用该激光系统结合常规852nm激光实现了铯原子50D和50S里德堡态电磁感应透明(EIT)光谱。该激光系统的实现,为微型化、可扩展的绿光激光系统提供一种可行性方案,有利于实用化原子介质电场精密测量设备的实现。The new microwave electric field quantum measurement method based on Rydberg atoms has the advantages of high sensitivity,large dynamic range and small measurement uncertainty.It is expected to form a new generation of microwave electric field standard that can lead to a direct SI-traceable approach for microwave electric field metrology.A miniature green laser system for precision measurement of microwave electric field based on Rydberg atoms is proposed.The single-frequency 509 nm green laser system was mounted in the littrow configuration with 80 mW output power.We investigated the electromagnetic induced transparency(EIT)spectroscopy of 50D and 50S for microwave electric field precision measurement through the application of homemade laser system.The realization of the laser system provides a feasible scheme for the miniaturized and expandable green laser system,which is beneficial to the realization of the practical precise measuring equipment of electric field based on atomic dielectric.

关 键 词：计量学 里德堡原子 微波电场 激光系统 

分 类 号：TB973[一般工业技术—计量学]