一种低功耗被动型CPT原子钟

A Low Power Consumption Passive CPT Atomic Clock

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.