会议论文详细信息
8th Symposium on Frequency Standards and Metrology 2015 | |
Recent progress in optically-pumped cesium beam clock at Peking University | |
Liu, C.^1 ; Zhou, S.^1 ; Wan, J.^1 ; Wang, S.^1 ; Wang, Y.^1 | |
School of Electronics Engineering and Computer Science, Peking University, Beijing, China^1 | |
关键词: Laser frequency; Long term stability; Magnetic state; Microwave power; Optically pumped; Peking University; Recent progress; Short term stability; | |
Others : https://iopscience.iop.org/article/10.1088/1742-6596/723/1/012011/pdf DOI : 10.1088/1742-6596/723/1/012011 |
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来源: IOP | |
【 摘 要 】
A compact, long-life, and low-drift cesium beam clock is investigated at Peking University, where the atoms are magnetic-state selected and optically detected. Stability close to that of the best commercial cesium clocks has been achieved from 10 to 105s. As previously shown, the short-term stability is determined by atomic shot noise or laser frequency noise. The stabilizations of microwave power and C-field improve the long-term stability, with the help of a digital servo system based on field-programmable gate array.
【 预 览 】
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Recent progress in optically-pumped cesium beam clock at Peking University | 1814KB | download |