A method to enhance the detection capability of optical sensing based on the quantum characteristics of vortex beam

Xiang Li; Qinlang Zhang; Yang Yi; Yifan Zhou; Zhenping Yin; Yinghao Lun; Xiangyu Dong; Qianyuan Chen; Lude Wei; Xuan Wang

doi:10.1117/12.2692718

26 November 2023 A method to enhance the detection capability of optical sensing based on the quantum characteristics of vortex beam

Xiang Li, Qinlang Zhang, Yang Yi, Yifan Zhou, Zhenping Yin, Yinghao Lun, Xiangyu Dong, Qianyuan Chen, Lude Wei, Xuan Wang

Author Affiliations +

Proceedings Volume 12775, Quantum and Nonlinear Optics X; 127751P (2023) https://doi.org/10.1117/12.2692718
Event: SPIE/COS Photonics Asia, 2023, Beijing, China

Conference Poster

Abstract

We propose a method based on vortex beams, which carries optical orbital angular momentum (OAM) to achieve spatial separation of coherent signal light and incoherent noise light and conducted experiments to evaluate the effect. Based on the experimental results, we established the relationship between signal-to-noise ratio (SNR) and topological charge number, signal channel size, and then optimized the relevant parameters. We built a LIDAR system for underwater detection to verify the practical effectiveness of the method. The experimental results demonstrate a significant improvement in the SNR for underwater detection.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Xiang Li, Qinlang Zhang, Yang Yi, Yifan Zhou, Zhenping Yin, Yinghao Lun, Xiangyu Dong, Qianyuan Chen, Lude Wei, and Xuan Wang "A method to enhance the detection capability of optical sensing based on the quantum characteristics of vortex beam", Proc. SPIE 12775, Quantum and Nonlinear Optics X, 127751P (26 November 2023); https://doi.org/10.1117/12.2692718

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