原子干涉仪多频时分复用激光放大控制系统  

Multi-frequency time division multiplexing laser amplification control system for atom interferometers

作　　者：张文冬[1,2,3] 何川 闫思彤 Barthwal Sachin[1,2] 龙世同 汤彪 周林[1,2] 王谨 詹明生[1,2] ZHANG Wendong;HE Chuan;Yan Sitong;Barthwal Sachin;LONG Shitong;TANG Biao;ZHOU Lin;WANG din;ZHAN Mingsheng(State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China;Center for Cold Atom Physics, Chinese Academy of Sciences, Wuhan 430071, China;University of Chinese Academy of Sciences, Beijing 100049, China)

机构地区：[1]中国科学院武汉物理与数学研究所波谱与原子分子物理国家重点实验室,湖北武汉430071 [2]中国科学院冷原子物理中心,湖北武汉430071 [3]中国科学院大学,北京100049

出　　处：《量子电子学报》2018年第3期294-299,共6页Chinese Journal of Quantum Electronics

基　　金：国家自然科学基金;11227803;91536221;11204354;11574354;国家重点研发计划课题;2016YFA0302002;中国科学院青年创新促进会~~

摘　　要：研发了一种多频时分复用锥形激光放大控制系统。通过控制种子激光的输出频率和工作时序,此系统可以实现高隔离度单频、比例可调双频、复合多频调制三种不同模式的激光放大。实验研究了该控制系统的光学特性,结果表明输出线偏振激光束间的消光比达30 dB,不同工作模式的切换时间为100 ns。该系统可提高激光器的利用效率,适用于原子干涉精密测量物理及原子干涉仪应用技术等对激光输出功率、集成度要求较高的领域。A multi-frequency time-division multiplexing tapered laser amplification control system is developed. By controlling the output frequency and working time sequence of seed laser, the system can realize laser amplification in three different modes including high isolation single frequency, proportion adjustable dual-frequencies, and composite multi-frequency modulation. Optical characteristics of the control system are investigated experimentally. Results show that extinction ratio between the output linear polarization laser beam is 30 dB, and the switching time between different working modes is 100 ns. The proposed system can improve the utilization efficiency of lasers, which is suitable for the fields with higher requirements for output power and integration of laser, such as atom interferometer based precision measurement physics and atom interferometer application technology.

关 键 词：激光技术 时分复用 锥形激光放大器 原子干涉仪 

分 类 号：TN248[电子电信—物理电子学] O562.3[理学—原子与分子物理]