论文部分内容阅读
通过微型原子蒸汽室产生质量满足要求的相干布居囚禁(CPT)信号是实现芯片原子钟的关键之一.本实验通过对光源实施频率调制和对光场与87Rb原子作用产生的信号作相敏解调获得高信噪比的CPT微分谱线,利用CPT微分谱线研究了CPT信号随工作参数变化的规律以及信号质量对原子钟频率稳定度的影响,所获研究结果与理论模型预期相符合,实验结果为芯片原子钟推荐了最佳工作参数.实验所采用的方法利用芯片原子钟自身的资源就可以实施,因此为芯片原子钟开展性能研究和实施工作参数优化提供了实用的手段.
It is one of the keys to realize CPT signal by miniaturized atomic steam chamber to produce mass-satisfying CPT signal. In this experiment, the frequency modulation of the light source and the signal of the 87Rb atom are made to be phase-sensitive The CPT differential line with high signal-to-noise ratio was obtained. The CPT differential line was used to study the variation of CPT signal with the operating parameters and the influence of signal quality on the atomic clock frequency stability. The obtained results are in good agreement with the theoretical model. As a result, the best operating parameters are recommended for the atomic clock of the chip.The method used in the experiment can be implemented by using its own resources of the chip atomic clock, and thus provides a practical method for researching the performance of the chip atomic clock and optimizing the working parameters.