Frequency Stabilization and Linewidth Narrowing with Modulation Transfer Spectroscopy  

作　　者：ZHANG Xi LIU Hui JIANG Kunliang WANG Jinqi XIONG Zhuanxian HE Lingxiang Lu Baolong 

机构地区：[1]State Key Laboratory of Magnetic Resonance and Atomicand Molecular Physics, Wuhan Institute of Physics and Mathematics,Chinese Academy of Sciences, Wuhan 430071, Hubei, China [2]Key Laboratory of Atomic Frequency Standards, WuhanInstitute of Physics and Mathematics, Chinese Academy ofSciences, Wuhan 430071, Hubei, China [3]School of Physics, University of Chinese Academy of Sciences, Beijing 100049, China

出　　处：《Wuhan University Journal of Natural Sciences》2018年第1期51-55,共5页武汉大学学报（自然科学英文版）

基　　金：Supported by the National Natural Science Foundation of China(61227805,11574352,91536104,91636215);the Strategic Priority Research Program of the Chinese Academy of Sciences(XDB21030700)

摘　　要：We report laser frequency stabilization with modulation transfer spectroscopy（MTS） on 85 Rb atoms. With both PZT（piezo-electric transducer） slow-loop feedback and current fastloop feedback to the laser head, we get a linewidth narrowing less than 5 kHz simultaneously. Laser injection to a laser diode and frequency beating with another polarization spectroscopy based stabilization setup are also employed to check the narrow linewidth property. With the help of the technique, a linewidth around k Hz-level laser is obtained and pave the way for the locking of the lattice laser of ytterbium clock with transfer cavity technique. The setup can be used as a frequency reference for precise frequency control of atomic clock system.We report laser frequency stabilization with modulation transfer spectroscopy（MTS） on 85 Rb atoms. With both PZT（piezo-electric transducer） slow-loop feedback and current fastloop feedback to the laser head, we get a linewidth narrowing less than 5 kHz simultaneously. Laser injection to a laser diode and frequency beating with another polarization spectroscopy based stabilization setup are also employed to check the narrow linewidth property. With the help of the technique, a linewidth around k Hz-level laser is obtained and pave the way for the locking of the lattice laser of ytterbium clock with transfer cavity technique. The setup can be used as a frequency reference for precise frequency control of atomic clock system.

关 键 词：modulation transfer spectroscopy frequency stabilization LINEWIDTH long-term drift 

分 类 号：O433[机械工程—光学工程] O562[理学—光学]