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

Xu Zhang; Zhifeng Lin; Kaixin Wang; Chunqing Gao

doi:10.1117/12.2616390

8 July 2022 Influence of linewidths and pulse widths of single frequency pulsed lasers on the wind velocity measurement

Xu Zhang, Zhifeng Lin, Kaixin Wang, Chunqing Gao

Proceedings Volume 12280, 2021 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications; 1228008 (2022) https://doi.org/10.1117/12.2616390
Event: 2021 International Conference on Optical Instruments and Technology, 2022, Online Only

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°.

Citation Download Citation

Xu Zhang, Zhifeng Lin, Kaixin Wang, and Chunqing Gao "Influence of linewidths and pulse widths of single frequency pulsed lasers on the wind velocity measurement", Proc. SPIE 12280, 2021 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications, 1228008 (8 July 2022); https://doi.org/10.1117/12.2616390

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