Widely tunable laser frequency offset locking to the atomic resonance line with frequency modulation spectroscopy

作     者：Anqi Wang Zhixin Meng Yanying Feng 王安琪;孟至欣;冯焱颖

作者机构：State Key Laboratory of Precision Measurement Technology and Instruments Department of Precision Instruments Tsinghua University Beijing 100084 China 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2018年第16卷第5期

页      面：47-51页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：supported by the National Natural Science Foundation of China(No.61473166) 

主　　题：Widely tunable laser frequency offset locking to the atomic resonance line with frequency modulation spectroscopy AOM EOM DDS FMS 

摘      要：A simple and robust technique is reported to offset lock a single semiconductor laser to the atom resonance line with a frequency difference easily adjustable from a few tens of megahertz up to tens of gigahertz. The proposed scheme makes use of the frequency modulation spectroscopy by modulating sidebands of a fiber electro-optic modulator output. The short-term performances of a frequency offset locked semiconductor laser are experimentally demonstrated with the Allan variance of around 3.9 × 10-11 at a 2 s integration time. This method may have many applications, such as in Raman optics for an atom interferometer.