Miniature laser frequency stabilization module for cold atom sensing  

作　　者：Qingzhe Gou Ning Wei Haixu Tao Kang Cheng Yongtao Fan Jiajing He Jun Wang 缑庆哲;卫宁;陶海旭;程康;范永涛;何佳晶;王俊(School of Microelectronics,Shanghai University,Shanghai 201800,China;Qiguang Research and Innovation Center,Aerospace Laser Technology and Systems Department,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]School of Microelectronics,Shanghai University,Shanghai 201800,China [2]Qiguang Research and Innovation Center,Aerospace Laser Technology and Systems Department,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China [3]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Chinese Optics Letters》2024年第10期65-69,共5页中国光学快报（英文版）

基　　金：the National Natural Science Foundation of China(No.62305354)。

摘　　要：In this study,a miniature laser frequency stabilization module for cold atom sensing applications was designed and realized.The module can lock the laser frequency to the saturated absorption spectrum of the D2 line of rubidium(Rb)atoms using the frequency modulation spectroscopy method.The module core is a tiny Rb cell,co-packaged with the saturation absorption optical setup,temperature control circuit,and detection circuit through a joint optical-mechanical-electrical design for a total volume of only 40 mm×15 mm×30 mm.The frequency fluctuation of the 780 nm laser after frequency stabilization by the module was within 1 MHz over 1000 s,which is adequate for magneto-optical trap experiments.The results verify the feasibility of the module as a frequency reference and provide a light source for portable cold atom sensing devices.

关 键 词：frequency stabilization MINIATURIZATION cold atoms saturation absorption spectrum 

分 类 号：TN24[电子电信—物理电子学]