Laser Technology, Volume. 49, Issue 3, 392(2025)

Rotating Doppler measurement of the manipulated vector laser in turbulent environment

HU Jianfei1, LUO Bin1, WANG Jiming1、*, and WU Tong2
Author Affiliations
  • 1School of Physics, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
  • 2Space Photoelectric Detection and Sensing of Industry and Information Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
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    In practical environment, severe interference can be observed in the extraction of rotational Doppler signals due to atmospheric turbulence and non-ideal targets. In order to retrieve effective Doppler signals amidst such interference, a method of polarization measurement employing higher-order vector vortex beams was employed. Subsequently, a rotational Doppler measurement system with resistance to turbulence, founded on vector vortex beams, was established, enabling the determination of rotational Doppler shifts under varying turbulence intensities. Doppler signals for rough targets moving at diverse velocities were obtained successfully. Experimental findings suggest that, the measurement of two angular velocities under different turbulence intensities using the 5th, the 10th, the 15th, and the 20th order vortex beams validates that within intricate environments. Turbulence noise can be substantially filtered out through the utilization of the polarization dimension. Thus, the accurate measurement of the angular velocities of objects can be realized. Furthermore, higher-order vortex beams are more advantageous in enhancing the robustness of the measurement system in complex environments. This study offers invaluable references for data monitoring in turbulent environments across a spectrum of disciplines, encompassing wind power generation, weather forecasting, medical research, and marine and atmospheric sciences.

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    HU Jianfei, LUO Bin, WANG Jiming, WU Tong. Rotating Doppler measurement of the manipulated vector laser in turbulent environment[J]. Laser Technology, 2025, 49(3): 392

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    Paper Information

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    Received: Mar. 25, 2024

    Accepted: Jul. 11, 2025

    Published Online: Jul. 11, 2025

    The Author Email: WANG Jiming (jimingw@nuaa.edu.cn)

    DOI:10.7510/jgjs.issn.1001-3806.2025.03.011

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