Influence of linewidths and pulse widths of single frequency pulsed lasers on the wind velocity measurement

Zhang Xu, Lin Zhifeng, Wang Kaixin, Gao Chunqing*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Coherent wind lidar is suitable for multiple scenarios. In this paper, a 1.55μm portable wind lidar with 10kHz 10μJ-level 200ns-pulsewidth output was developed. The theoretical model was established based on signal-to-noise ratio (SNR) function and coherent detection principle. The influence of linewidths and pulse widths of single frequency pulsed laser on the wind velocity measurement was studied and verified in comparison experiments. The blind area of the lidar was also analyzed. Solved from spectrum and SNR distribution in range bins, detection range of the lidar is an important detection parameter. The portable wind lidar reached the detection range to 2km with the inclination of 0°, and the range to 1.5km with the inclination of 90°.

Original languageEnglish
Title of host publication2021 International Conference on Optical Instruments and Technology
Subtitle of host publicationAdvanced Laser Technology and Applications
EditorsZhiyi Wei, Chunqing Gao, Pu Wang
PublisherSPIE
ISBN (Electronic)9781510655652
DOIs
Publication statusPublished - 2022
Externally publishedYes
Event2021 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications - Virtual, Online, China
Duration: 8 Apr 202210 Apr 2022

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12280
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference2021 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications
Country/TerritoryChina
CityVirtual, Online
Period8/04/2210/04/22

Keywords

  • linewidth
  • pulse width
  • single frequency laser
  • wind lidar

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