摘要
1 前言近年来光抽运铯束频标的研究取得了很大进展,稳定度已达到或超过了常规商品铯束频标的水平。我们的光抽运铯束频标也已实现闭环运行实验,短期稳定度达到1.2×10^(-11)/τ^(1/2)。实验中采用了F=4,F=4跃迁抽运;F=4。
In this paper we report the preliminary results of an optically pumped Cesium beam frequency standard at Peking University. The stability is 1.2×10^(-11)/τ^(1/2) comparable to the stability of commercial conventional Cesium beam frequency standard. The bias-saturated-absorption lock technique was used to lock the probing laser and pumping laser to Cesium D_2 line. It is a simple, low cost and reliable locking method with more than 100 bours locking time. Further improvement is underway with the sharp angle incidence probing laser beam.
出处
《陕西天文台台刊》
CSCD
1992年第1期10-13,共4页
Publications of The Shaanxi Astronomical Observatiory
