Decreasing the uncertainty of atomic clocks via real-time noise distinguish
文献类型：期刊论文
| 作者 | Zou, Fan; Du, Yuanbo; Wang, Yuzhu; Chen, Tingting; Dong, Richang; Lin, Jinda; Wei, Rong; Wang, Wenli |
| 刊名 | Chin. Opt. Lett.
 |
| 出版日期 | 2017 |
| 卷号 | 15期号:5 |
| 通讯作者 | weirong@siom.ac.cn |
| 英文摘要 | The environmental perturbation on atoms is a key factor restricting the performance of atomic frequency standards, especially in the long-term scale. In this Letter, we perform a real-time noise distinguish (RTND) to an atomic clock to decrease the uncertainty of the atomic clock beyond the level that is attained by the current controlling method. In RTND, the related parameters of the clock are monitored in real time by using the calibrated sensors, and their effects on the clock frequency are calculated. By subtracting the effects from the error signal, the local oscillator is treated as equivalently locked to the unperturbed atomic levels. In order to perform quantitative tests, we engineer time-varying noise much larger than the intrinsic noise in our fountain atomic clock. By using RTND, the influences of the added noises are detected and subtracted precisely from the error signals before feeding back to the reference oscillator. The result shows that the statistical uncertainty of our fountain clock is improved by an order of magnitude to 2 x 10(-15). Besides, the frequency offset introduced by the noise is also corrected, while the systematic uncertainty is unaffected. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [61275204, 91336105] |
| WOS记录号 | WOS:000401075400001 |
| 源URL | [http://ir.siom.ac.cn/handle/181231/27772]  |
| 专题 | 上海光学精密机械研究所_量子光学重点实验室 |
| 作者单位 | 中国科学院上海光学精密机械研究所 |
| 推荐引用方式 GB/T 7714 | Zou, Fan,Du, Yuanbo,Wang, Yuzhu,et al. Decreasing the uncertainty of atomic clocks via real-time noise distinguish[J]. Chin. Opt. Lett.,2017,15(5). |
| APA | Zou, Fan.,Du, Yuanbo.,Wang, Yuzhu.,Chen, Tingting.,Dong, Richang.,...&Wang, Wenli.(2017).Decreasing the uncertainty of atomic clocks via real-time noise distinguish.Chin. Opt. Lett.,15(5). |
| MLA | Zou, Fan,et al."Decreasing the uncertainty of atomic clocks via real-time noise distinguish".Chin. Opt. Lett. 15.5(2017). |
入库方式： OAI收割
来源：上海光学精密机械研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。