铷原子喷泉钟部分单元系统的设计与改进
文献类型：学位论文
| 作者 | 陈婷婷 |
| 文献子类 | 硕士 |
| 导师 | 魏荣 |
| 关键词 | 原子频标 atomic frequency standard 铷原子喷泉钟 Rb atomic fountain clock 阿兰方差 Allan variance 高效率态制备 high efficient state preparation |
| 其他题名 | Design and improvement of part of the unit system of Rubidium atomic fountain clock |
| 英文摘要 | 本文介绍了本人在上海光机所（SIOM）量子光学重点实验室研制铷原子喷泉钟所做的研究实验与改进工作。在已经搭建完成并进行了一系列评估工作的铷87原子喷泉钟的基础上，我们正在进行铷85原子喷泉钟的搭建工作。 为了保证铷85喷泉钟系统顺利运行和提高系统的可靠性，我们对已经完成的几个部分进行了测量与性能评估，包括Ramsey微波腔共振频率与Q值的测量，磁屏蔽效果和磁场补偿的调节与测量及系统铅垂性能的监测与调节。对微波链路的部分元器件进行了调整与更换，实现了3.036GHz频率信号的稳定锁相，评估了链路各个部分的相位噪声。设计制作了用于磁光阱（MOT）作用腔的地磁场补偿线圈的多路电流源，电流连续可调且精确度和稳定度都达到了使用要求。 此外，提出了一种关于提高喷泉钟原子利用率的高效率态制备方案。介绍了一种关于提高原子钟性能的实时误差补偿方法，此方法在铷87喷泉系统上得到了实验验证。; In this thesis, I will introduce my work on the research and improvement of rubidium atomic fountain clock. On the basis of the well-built rubidium-87 fountain clock and a series of evaluation have made, the setting up work on rubidium-85 atomic fountain clock is ongoing. In order to ensure that Rb 85 fountain clock system running smoothly and improve its reliability, several work on measurement and performance evaluation have been done, including Ramsey microwave cavity resonance frequency and Q value measurement, magnetic shielding effect and magnetic compensation adjustment and measurement, and monitoring and regulating the vertical performance of the system. We have adjust and replace some of the components for the microwave link, realized the stable phase locking of the 3.036GHz frequency of the reference signal, then evaluated the phase noise for each part of the link. A multiple-channels current source for geomagnetic field compensation coil of magneto-optical trap (MOT) cavity was designed and produced, and the requirement for output current continuously adjustable and high precision and stability are achieved. Moreover, this thesis proposes a high efficient state preparation plan on improving the utilization ratio of the Rb atoms in atomic fountain clocks. A real-time error compensation method for improving the performance of atomic clocks was intorduced, which have got the experimental verification on the Rb 87 fountain system. |
| 学科主题 | 光学工程 |
| 源URL | [http://ir.siom.ac.cn/handle/181231/30972]  |
| 专题 | 中国科学院上海光学精密机械研究所 |
| 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 | 陈婷婷. 铷原子喷泉钟部分单元系统的设计与改进[D]. |
入库方式： OAI收割
来源：上海光学精密机械研究所
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