| DFB半导体激光抽运铷原子频标 |
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| 引用本文： | 黄家强,顾源,张胤,王延辉,刘淑琴,董太乾.DFB半导体激光抽运铷原子频标[J].时间频率学报,2012,35(2):65-69. |
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| 作者姓名： | 黄家强 顾源 张胤 王延辉 刘淑琴 董太乾 |
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| 作者单位： | 北京大学信息科学技术学院量子电子学研究所,北京,100871 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 在传统铷原子频标的基础上,利用一台780 nm的DFB半导体激光器代替铷光谱灯作为抽运光源,将激光的频率锁定在87Rb原子的循环跃迁线(52S1/2,F=2→52P3/2,F=3)上,实现了微波铷原子频标的闭环锁定,初步获得的短期稳定度指标为3.7×10-12τ-1/2(1~100 s)。
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| 关 键 词： | 铷原子频标 激光抽运 饱和吸收谱 频率稳定度 |
A DFB laser-pumped rubidium atomic frequency standard |
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| HUANG Jia-qiang,GU Yuan,ZHANG Yin,WANG Yan-hui,LIU Shu-qin,DONG Tai-qian.A DFB laser-pumped rubidium atomic frequency standard[J].Journal of Time and Frequency,2012,35(2):65-69. |
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| Authors: | HUANG Jia-qiang GU Yuan ZHANG Yin WANG Yan-hui LIU Shu-qin DONG Tai-qian |
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| Institution: | (School of Electronics Engineering and Computer Science,Peking University,Beijing 100871,China) |
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| Abstract: | We use one DFB laser diode(780 nm) as the pumping source,which is based on a homemade traditional rubidium frequency standard with the discharge lamp assembly removed.The laser frequency is locked to the 87Rb cycling transition(52S1/2,F=2→52P3/2,F=3) by means of traditional saturation absorption locking technique and the microwave rubidium frequency standard locking loop is accomplished.The initial short-term stability of the rubidium clock is measured to be 3.7×10-12 τ-1/2(1~100 s). |
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| Keywords: | Rb frequency standard laser-pumping saturated absorption spectrum frequency stability |
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