Design of Direct Detection Doppler Lidar with Coherent Light Path

被引：0
|
作者：
Zhang N. [1 ,2 ]
Han Y. [1 ,2 ]
Chen T. [1 ,2 ]
Sun D. [1 ,2 ]
Zhou A. [1 ,2 ]
Han F. [1 ,2 ]
机构：
[1] School of Earth and Space Science, University of Science and Technology of China, Hefei, 230026, Anhui
[2] CAS Key Laboratory of Geospace Environment, Hefei, 230026, Anhui
来源：
| 2017年 / Science Press卷 / 44期
关键词：
Fabry-Perot interferometer; Lidar; Remote sensing; Tunable laser;
D O I：
10.3788/CJL201744.1010005
中图分类号：
学科分类号：
摘要：
A direct detection Doppler lidar system with coherent light path which can work in high altitude area is proposed. Design of the optical path system is improved on the basis of coherent lidar system, the atmospheric molecular scattering light is used for wind speed measurement. The optical path of direct detection system is simplified by photoswitch and monostatic telescope. The photoswitch is composed of polarization splitting prism and 1/4 wave plate. The stability of optical path is improved. The etalon with fixed cavity length is adopted. The wavelength of pulse laser is tunable. The tuning range is about 10 GHz after optimization. The simulation design and equipment selection of the system are completed. © 2017, Chinese Lasers Press. All right reserved.
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