摘要
介绍了一款新研制的被动型相干布局囚禁(CPT)原子钟样机及其主要性能。样机功耗约为4W,频率稳定度达到在τ〈8000s范围内优于6×10^-11τ^-1/2,10MHz输出频率在1Hz范围内的相位噪声达到-79.1dBc/Hz。所研制的CPT原子钟具有小型、低功耗的特点。
A new developed passive Coherent Population Trapping (CPT) atomic clock is reported, and its main performances is introduced. The power consumption of the clock is about 4 W, 6×10^-11τ^-1/2 is recorded with r 〈 8 000 s with it, and its phase noise of 10 MHz frequency output in the range of 1 Hz is -79.1 dBc/Hz. It shall be a competitive candidate for the applications requiring low power consumption and small size atomic clocks.
出处
《计量学报》
CSCD
北大核心
2010年第5期417-420,共4页
Acta Metrologica Sinica
基金
国家自然科学基金(10574141,10675162)
关键词
计量学
原子钟
相干布居数囚禁
微波
Metrology
Atomic Clock
Coherent Population Trapping
Microwave