原子法拉第效应器件稳频与鉴频的测速多普勒激光雷达
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- 英文论文题名：A Doppler lidar with atomic Faraday devices frequency stabilization and discrimination
- 论文作者：李发泉 ; 林鑫 ; 程学武 ; 杨勇 ; 武魁军 ; 龚顺生
- 英文论文作者：LI Fa-quan ; LIN Xin ; CHENG Xue-wu ; YANG Yong ; WU Kui-jun ; GONG Shun-sheng ; State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics ; Wuhan Institute of Physics and Mathematics ; Chinese Academy of Sciences ; University of Chinese Academy of Sciences
- 年：2012
- 作者机构：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;中国科学院大学;
- 论文关键词：激光技术 ; 激光雷达 ; 多普勒测速 ; 原子滤光 ; 原子稳频
- 英文论文关键词：laser techniques ; Doppler lidar ; Doppler velocity measurement ; atomic optical filter ; atomic frequency stabilization
- 会议召开时间：2012-10-15
- 会议录名称：第二届中国激光雷达学术会议论文集
- 语种：中文
- 分类号：TN958.98
- 学会代码：LZZS
- 会议名称：第二届中国激光雷达学术会议
- 会议地点：中国山东青岛
- 主办单位：中国科学院合肥物质科学研究院、中国科学院上海光学精密机械研究所、中国科学院大气物理研究所、武汉大学、中国海洋大学、西安理工大学
- 学会名称：《量子电子学报》编辑部
- 页数：4
- 文件大小：252k
- 原文格式：O
- 会议级别：全国
摘要
利用法拉第反常色散滤光器(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-40~40 m/s的测速范围内,测速误差为±0.74 m/s.
A Doppler lidar was reported in which the laser frequency is stabilized and the backscattered light frequency is discriminated by a multi-peak and less-peak atomic Faraday anomalous dispersion optical filter(FADOF),respectively.The transmission spectrum of 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 FADOF provides a high velocity accuracy,and the tunability of FADOF transmission spectrum makes the measurement range flexible.An experimental lidar system was described based on cesium FADOFs,and the experimental error is of 0.74 m/s over velocities ranging from-40 to 40 m/s.
A Doppler lidar was reported in which the laser frequency is stabilized and the backscattered light frequency is discriminated by a multi-peak and less-peak atomic Faraday anomalous dispersion optical filter(FADOF),respectively.The transmission spectrum of 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 FADOF provides a high velocity accuracy,and the tunability of FADOF transmission spectrum makes the measurement range flexible.An experimental lidar system was described based on cesium FADOFs,and the experimental error is of 0.74 m/s over velocities ranging from-40 to 40 m/s.
引文
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[2]Ando T,et al.All-fiber coherent Doppler lidar technologies at Mitsubishi electric corporation[C].14th International Symposium for Advancement of Boundary Laser Remote Sensing,IOP Conference Series:Earth and Environmental Science,2008,1-10.
[3]Tang Lei,Shu Zhifeng,et al.Mobile Rayleigh Doppler wind lidar based on double-edge technique[J].Chin.Opt.Lett.,2010;8(8):726-731.
[4]Liu Z S,Liu B Y,Li Z G,et al.Wind measurements with incoherent Doppler lidar based on iodine flters at night and day[J].Appl.Phys.B,2007,88:327-335.
[5]Yeh P.Dispersive magnetooptic filters[J].Appl.Opt.,1982,21(11):2069-2075.
[6]Dick D J,Shay T M.Ultrahigh-noise rejection optical filter[J].Opt.Lett.,1991,16(11):867-869.
[7]Yin B,Shay T M.Theoretical model for a Faraday anomalous dispersion optical filter[J].Opt.Lett.,1991,16(20):1617-1619.
[8]Chen H,White M A,David A,et al.Daytime mesopause temperature measurements with a sodium-vapor dispersive Faraday filter in a lidar receiver[J].Opt.Lett.,1996,21(15):1093-1095.
[9]Bloom S,Chen V,Liu C S.High-elevation terrestrial validation of BMDO lasercom system at 1.1 Gbit/s[J].SPIE,1995,2381:113-128.
[10]Bloom S H,Kremer R,Searcy P A,et al.Long-range,noncoherent laser Doppler velocimeter[J].Opt.Lett.,1991,16(22):1794-1796.
[11]Hu Zhilin,Sun Xianping,Liu Yiping,et al.Temperature properties of Na dispersive Faraday optical filter at Dl and D2 line[J].Opt.Commun.,1998,156:289-293.
[12]Dressier E T,Laux A E,et al.Theory and experimental for the anomalous Faraday effect in potassium[J].Journal of the Optical Society of America B,1996,13(9):1849-1858.
[13]Yin B,Shay T M.Faraday anomalous dispersion optical filter for the Cs 455 nm transmission[J].IEEE Photon.Technology Lett.,1992,4(5):488-490.