Journal of Atmospheric and Environmental Optics ›› 2018, Vol. 13 ›› Issue (5): 364-369.

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Research on the Technology of 1.55 um All-Fiber Coherent Wind Lidar

KE Tianmei1,2, TAN Tu2, HOU Zaihong2, JING Xu2, Wang Zhengdong2, GAO Xiaoming2,*   

  1. (1 School of Physics and Materials Science, Anhui University, Hefei 230601, China; 2 Laboratory of Environmental Spectroscopy, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031,China)
  • Online:2018-09-28 Published:2018-09-28
  • Supported by:

    Supported by National Key research and development program of China (国家重点研发计划,2017YFC0209700)

Abstract:

The monitoring of wind speed is very important in meteorological prediction, safety protection of aircraft and the investigation of wind resources. Using the 1.55 um narrow line width fiber laser for all optical fiber laser coherent Doppler wind technology research, a set of the motor driven wheel rotation to simulate wind speed measuring device, the scattering signal Doppler frequency shift to the measurement accuracy of the calibration system. The single-pulse energy of the 1.55μm all-fiber pulse laser is 10 μJ, the pulse repetition frequency is 20 kHz, the pulse width is 200 ns, and the simulated wind speed is consistent with the actual measurement results.

Key words: frequency shift, Doppler effect, KEOPSYS laser, wind velocity

CLC Number: