全光纤相干多普勒连续激光多普勒风速仪研究

J4 ›› 2016, Vol. 33 ›› Issue (2): 243-248.

全光纤相干多普勒连续激光多普勒风速仪研究

陈震,信丰鑫,王俊洋,李辉,马玲,刘智深

中国海洋大学海洋遥感研究所，山东青岛 266100

收稿日期:2015-03-20 修回日期:2015-04-04 出版日期:2016-03-28 发布日期:2016-03-28
通讯作者: 刘智深（1938-）上海人，教授，研究方向为测风激光雷达 E-mail:zsliu@ouc.edu.cn
作者简介:陈震（1989-）西安人，研究生，研究方向为全光纤激光雷达测风，wlcz890222@126.com

Research on all fiber CW laser Doppler wind velocimetry

Chen Zhen，Xin Fengxin，Wang Junyang ,Li Hui，Ma Ling，Liu Zhishen

Ocean Remote Sensing Institute ,Ocean University of China ,Qingdao 266100， China

Received:2015-03-20 Revised:2015-04-04 Published:2016-03-28 Online:2016-03-28

摘要/Abstract

摘要： 介绍了一套全光纤相干连续激光多普勒风速仪，该激光风速仪使用了1.5um光纤激光器作为激光光源，其输出能量为~1W，利用保偏环形器、耦合器等器件搭建了一套同轴收发的风速仪系统。利用距离望远镜~5m的转盘对系统进行了校准实验，实验结果表明系统的速度分辨率和测量与转盘实际速度的线性拟合系数分别为0.021m/s和0.99。该系统还成功实现大气风速的测量（~25m处的大气）。

关键词: 激光雷达；风速仪；全光纤相干探测；连续激光

Abstract: A monostatic coherent 1.55um continuous-wave (CW) laser Doppler wind velocimetry with an output power of 1W is presented, in which a fiber-optics polarization-maintaining circulator, coupler and a balanced detector is used. This system can perform line of sight velocity measurements of hard moving target at ranges of ~5m away from the telescope with a velocity accuracy of 0.021m/s and an excellent degree of speed correlation(R2=0.99) form a linear regression analysis of the system vs true moving target. Another ability of this velocimetry is also showed that the speed of air away from telescope ~25m is implemented.

Key words: LIDAR；velocimetry；all fiber optical heterodyne detection；CW laser

中图分类号:

P415.2

陈震信丰鑫王俊洋李辉马玲刘智深. 全光纤相干多普勒连续激光多普勒风速仪研究[J]. J4, 2016, 33(2): 243-248.

Chen Zhen，Xin Fengxin，Wang Junyang ,Li Hui，Ma Ling，Liu Zhishen. Research on all fiber CW laser Doppler wind velocimetry[J]. J4, 2016, 33(2): 243-248.