Recent improvements on the pulsed optically pumped rubidium clock at SIOM  

作　　者：董功勋 邓见辽 林锦达 张松 林海笑 王育竹 

机构地区：[1]Key Laboratory of Quantum Optics,and Center for Cold Atom Physics,Shanghai Institute of Optics and Fine Mechanics(SIOM),Chinese Academy of Sciences,Shanghai 201800,China [2]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Chinese Optics Letters》2017年第4期1-4,共4页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China under Grant Nos.91536220 and 11504393

摘　　要：We report the recent progress of our pulsed optically pumped（POP） vapor cell rubidium clock with dispersive detection.A new compact physics package is made.A rubidium cell with a high precision buffer gases mixing ratio is obtained,and the temperature controlling system is renovated to reduce fractional frequency sensitivity to temperature variation.The resolution of the servo control voltage is also optimized.With these improvements,a clock frequency stability of 3.53×10-13 at 1s is obtained,and a fractional frequency stability of 4.91×10-15 is achieved at an average time of τ=2000 s.We report the recent progress of our pulsed optically pumped（POP） vapor cell rubidium clock with dispersive detection.A new compact physics package is made.A rubidium cell with a high precision buffer gases mixing ratio is obtained,and the temperature controlling system is renovated to reduce fractional frequency sensitivity to temperature variation.The resolution of the servo control voltage is also optimized.With these improvements,a clock frequency stability of 3.53×10-13 at 1s is obtained,and a fractional frequency stability of 4.91×10-15 is achieved at an average time of τ=2000 s.

关 键 词：pumped clock optically fractional gases servo dispersive mixing pulsed microwave 

分 类 号：TM935.115[电气工程—电力电子与电力传动]