Frequency stability of atomic clocks based on coherent population trapping resonance in 85Rb

被引:0
|
作者
Liu Lu [1 ]
Guo Tao [1 ]
Deng Ke [1 ]
Liu Xin-Yuan [1 ]
Chen Xu-Zong [1 ]
Wang Zhong [1 ]
机构
[1] Peking Univ, Lab Quantum Informat & Measurements, Sch Elect Engn & Comp Sci, Beijing 100871, Peoples R China
关键词
VAPOR;
D O I
暂无
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
An atomic clock system based on coherent population trapping (CPT) resonance in Rb-85 is reported, while most past works about the CPT clock are in Rb-87. A new modulation method (full-hyperfine-frequency-splitting modulation) is presented to reduce the effect of light shift to improve the frequency stability of the CPT clock in Rb-85. The experimental results show that the short-term frequency stability of the CPT clock in Rb-85 is in the order of 10(-10)/s and the long-term frequency stability can achieve 1.5 X 10(-11)/80000s, which performs as well as Rb-87 in CPT resonance. This very good frequency stability performance associated with the low-cost and low-power properties of Rb-85 indicates that an atomic clock based on CPT in Rb-85 should be a promising candidate for making the chip scale atomic clock.
引用
收藏
页码:1883 / 1885
页数:3
相关论文
empty
未找到相关数据