Effects of the intensity difference of two laser fields on coherent population trapping clocks

被引：0

作者：

Wang, Zhong ^{[1
]}

Deng, Ke ^{[1
]}

He, Dingwu ^{[1
]}

Liu, Xinyuan ^{[1
]}

Liu, Lu ^{[1
]}

Guo, Tao ^{[1
]}

Chen, Xuzong ^{[1
]}

机构：

[1] Peking Univ, Sch Elect Engn & Comp Sci, Beijing 100871, Peoples R China

来源：

2008 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM, VOLS 1 AND 2 | 2008年

关键词：

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

We have studied the effects of the intensity difference of the two laser fields on the performance of the coherent population trapping (CPT) atomic clocks. Our experimental results show that there is a ratio range for the intensity of the two laser fields, between 1:2 and 2:1, in which the CPT resonance has larger amplitude and narrower line width. If we can adjust the ratio close to the center (1: 1), the signal quality (ratio of amplitude to line width) of CPT resonance will be efficiently improved. Our results also show that using full hyperfine frequency to modulate the laser has its advantages.

引用

页码：669 / 671

页数：3

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