弥漫激光抽运铯束频标实验研究  

Experiment Research on Diffused Laser Light Optically Pumped Cesium Beam Frequency Standard

作　　者：陈景标[1] 王凤芝[1] 王义遒[1] 杨东海[1] 

机构地区：[1]北京大学电子学系,北京100871

出　　处：《计量学报》2000年第2期81-88,共8页Acta Metrologica Sinica

基　　金：国家自然科学基金资助项目! (696780 31)

摘　　要：对本北京大学铯束频标实验室所提出的一种光抽运铯束频标的新结构弥漫激光抽运斜入射光检测铯束频标进行了首次实验。本文论述了这种新抽运检测机制的工作原理及其主要特点,对弥漫激光场的光强分布作了计算和测量,并实验检测了弥漫激光场的光抽运性能。实现了弥漫激光抽运铯束频标实验系统的闭环工作,与HP5071A商品小铯钟比对,此频标实验系统频率短期稳定度为2×10-11/τ,天稳定度为35×10-13。实验表明。Diffused laser light optically pumped cesium beam frequency standard is a new pumping probing scheme of optically pumped cesium beam frequency standards. The principle and main features of this new scheme were presented in this paper. The intensity distribution of diffused laser light in the diffuser was calculated, and compared with the results measured. The pumping efficiency of the diffused laser light was tested experimentally, the results agree well with the theoretical analyses. The stability of the diffused laser light optically pumped cesium beam frequency standard was measured by comparing its 10 MHz output with a HP5071A commercial cesium beam clock. It shows the frequency stability for 1 second and one day sample time are 1×10 -11 and 3 5×10 -13 respectively. It was proved that the new pumping scheme works well.

关 键 词：光抽运 铯束频标 弥漫激光 实验 频率标准 

分 类 号：TM935.11[电气工程—电力电子与电力传动] TN249[电子电信—物理电子学]