Abstract:In order to develop a high performance optical pumped Cesium atomic clock, the noise factors affecting the stability of atomic clock are analyzed theoretically. Through quantitative calculation on the various factors influencing the atomic clock short-term stability and long-term stability, the comparison of corresponding experimental results were carred out. Based on analysis of stability limit of the optical pumping atomic clock, a solution on improving the optically pumped Cesium beam atomic clock is proposed, that is a new generation of optically pumped Cesium beam atomic clock design, the stability degree will exceed HP5071 high performance Cesium clock based on magnetic state-selection.
[1]王义遒. 量子频标原理[M].北京:科学出版社,1986.
[2]王青.小型化光抽运铯束频标的研究[D].北京:北京大学,2015.
[3]刘安平.光抽运铯束原子钟稳定性研究[D].北京:北京大学,2014.
[4]山其君.应用于光抽运铯束原子钟的窄线宽激光器技术[D].北京:北京大学,2014.
[5]Wang Q, Qi XH, Liu SY, et al. Laser frequency stabilization using a dispersive line shape induced by Doppler Effect[J], Optics Express,2015,23(3):2982.
[6]Duan J, Qi XH, Zhou XJ, et al. Detection of saturated absorption spectroscopy at high sensitivity with displaced crossovers[J], Optics Letters,2011,36:561.