面向双气室铯光泵磁力仪的VCSEL稳频研究  

VCSEL frequency stabilization research for dual-cell Cs optical pumping magnetometer

作　　者：张弛 李绍良 赵擎阳 舒适 吴招才 刘华[1] ZHANG Chi;LI Shaoliang;ZHAO Qingyang;SHU Shi;WU Zhaocai;LIU Hua(School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Aerospace Control Technology Institute,Shanghai Inertia Engineering Technology Research Center,Shanghai 201109,China;Second Institute of Oceanography,The Ministry of Natural Resources,Hangzhou 310012,China)

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240 [2]上海航天控制技术研究所,上海惯性工程技术研究中心,上海201109 [3]自然资源部第二海洋研究所,杭州310012

出　　处：《激光杂志》2024年第4期26-34,共9页Laser Journal

基　　金：上海航天先进技术联合研究基金资助项目(No.USCAST2019-23);上海交通大学“深蓝计划”基金资助项目(No.SL2021ZD202);“十三五”装备预研领域基金资助项目(No.61405170103)。

摘　　要：在地磁场测量领域中,自激振荡式碱金属原子光泵磁力仪因为快速响应与高精度成为一项重要技术。其中自激式双气室光泵磁力仪无需考虑移相电路带来的信号误差,电路简单。使用垂直腔面发射激光器作为泵浦光源有效降低了磁力仪功耗和体积。针对使用垂直腔面发射激光器的便携式双气室铯光泵磁力仪激光稳频方法进行设计,设计方案包括激光器温度控制电路,光泵磁力仪信号反馈电路,激光器电流源调制与控制电路。将注入电流调制的稳频方法用于双气室光泵磁力仪结构,减小稳频代价的同时具有较好稳定性,温度控制精度达到0.002℃,10秒内波长稳定度达到4.36×10^(-10),初步探索了自激式双气室光泵磁力仪集成化与小型化的可能性。In the field of geomagnetic measurement,self-exciting dual-cell optical pumping magnetometers have become an important technology for their fast response and high accuracy.Among them,self-exciting dual-cell optical pumping magnetometers excludes phase-shifting circuits,and has simple circuit.The laser frequency stabilization method included a laser temperature control circuit,a feedback circuit,and a laser current source modulation and con-trol circuit.The study applied the frequency stabilization method of injection current modulation to the dual-cell opti-cal pump magnetometer structure.The proposed method reduces the power consumption and volume,with the tempera-ture control accuracy of±0.002℃and the wavelength stability of 4.36×10^(-10)within 10 seconds.The research ex-plores the possibility of integrating and miniaturizing self-exciting dual-cell optical pumping magnetometers.

关 键 词：垂直腔面发射激光器 光泵浦 磁力仪 稳频 

分 类 号：TN248.4[电子电信—物理电子学]