外文题目: Dick Effect in the Integrating Sphere Cold Atom Clock
作者: 王秀梅; 孟艳玲; 王亚宁; 万金银; 于明圆; 王鑫; 肖玲; 李唐; 成华东; 刘亮
刊名: Chin. Phys. Lett.
年: 2017 卷: 34 期: 6 文章编号：63702
英文摘要:
The Dick effect is an important factor limiting the frequency stability of sequentially-operating atomic frequency standards. Here we study the impact of the Dick effect in the integrating sphere cold atom clock (ISCAC). To reduce the impact of the Dick effect, a 5MHz local oscillator with ultra-low phase noise is selected and a new microwave synthesizer is built in-house. Consequently, the phase noise of microwave signal is optimized. The contribution of the Dick effect is reduced to 2.5x10(-13) tau(-1/2) (tau is the integrating time). The frequency stability of 4.6x10(-13) tau-(1/2) is achieved. The development of this optimization can promote the space applications of the compact ISCAC.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1088/0256-307X/34/6/063702


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