原子法拉第效应器件稳频与鉴频测速的多普勒激光雷达

J4 ›› 2013, Vol. 30 ›› Issue (1): 42-45.

原子法拉第效应器件稳频与鉴频测速的多普勒激光雷达

李发泉¹，林鑫^1,2，程学武¹，杨勇^1,2，武魁军^1,2，龚顺生¹

1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
2中国科学院研究生院，北京，100049

出版日期:2013-01-28 发布日期:2013-01-11
通讯作者: 李发泉(1970-)，山东淄博人，研究员，主要研究方向：基于原子分子高光谱分辨的光电探测原理与技术研究 E-mail:lifaquan@wipm.ac.cn。
基金资助:
国家自然科学基金项目(41127901)

A Doppler lidar with atomic Faraday devices frequency stabilization and discrimination

Li Faquan ¹，Li Xin ^1,2，Cheng Xuewu¹，Yang Yong ^1,2，Wu Kuijun^1,2，Gong Shunsheng¹

1Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan 430071, China;
2 University of Chinese Academy of Sciences, Beijing 100049, China

Published:2013-01-28 Online:2013-01-11

摘要/Abstract

摘要：

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。

关键词: 激光技术, 激光雷达, 多普勒测速, 原子滤光, 原子稳频

Abstract:

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.

Key words: laser techniques, Doppler lidar, Doppler velocity measurement, atomic optical ?lter, atomic frequency stabilization

李发泉，林鑫，程学武，杨勇，武魁军，龚顺生. 原子法拉第效应器件稳频与鉴频测速的多普勒激光雷达[J]. J4, 2013, 30(1): 42-45.

Li Faquan，Li Xin，Cheng Xuewu，Yang Yong，Wu Kuijun，Gong Shunsheng. A Doppler lidar with atomic Faraday devices frequency stabilization and discrimination[J]. J4, 2013, 30(1): 42-45.

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