原子法拉第效应器件稳频与鉴频测速的多普勒激光雷达
A Doppler lidar with atomic Faraday devices frequency stabilization and discrimination
查看参考文献13篇
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文摘
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利用FADOF透射频谱曲线稳定而又可调谐的特点,设计了一种测速多普勒激光雷达,一方面用其对发射激光稳频,同时用同种原子的FADOF对回波光鉴频,使发射激光频率和鉴频曲线建立了相对稳定的关系,可有利于提高测速精度。试验系统采用Cs原子FADOF,在-40~40m/s的测速范围内,测速误差为±0.74m/s。 |
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其他语种文摘
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A Doppler lidar was reported in which the laser frequency is stabilized and the backscattered light frequency is discriminated by a multi-peak and a less-peak atomic Faraday anomalous dispersion optical filter (FADOF),respectively. The transmission spectrum of the FADOF is stable as it is based on an atomic transition, and slightly tunable with a magnet due to Zeeman effect. The high frequency stability of the FADOF provides a high velocity accuracy; and the tunability of the FADOF transmission spectrum makes the measurement range flexible. We described an experimental lidar system based on cesium FADOFs, and the experimental error is of 0.74 m/s over velocities ranging from -40 to +40 m/s. |
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来源
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量子电子学报
,2013,30(1):42-45 【核心库】
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关键词
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激光技术
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激光雷达
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多普勒测速
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原子滤光
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原子稳频
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地址
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中国科学院武汉物理与数学研究所, 波谱与原子分子物理国家重点实验室, 湖北, 武汉, 430071
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1007-5461 |
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学科
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物理学;电子技术、通信技术 |
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基金
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国家自然科学基金
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文献收藏号
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CSCD:4753008
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参考文献 共
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