Underwater depth imaging of a single photon lidar system based on polarization suppression  

作　　者：Haidong Ye Rui Xu Jiafeng Sun Hang Lü Yan Shi Yunfeng Song Weiwei Liu 叶海东;徐睿;孙佳烽;吕航;石岩;宋云峰;刘伟伟(College of Optical and Electronic Technology,China Jiliang University,Hangzhou 310018,China;College of Electronic Information and Optical Engineering,Nankai University,Tianjin 300071,China;Sunny Group Co.,Ltd.,Ningbo 315400,China)

机构地区：[1]College of Optical and Electronic Technology,China Jiliang University,Hangzhou 310018,China [2]College of Electronic Information and Optical Engineering,Nankai University,Tianjin 300071,China [3]Sunny Group Co.,Ltd.,Ningbo 315400,China

出　　处：《Chinese Optics Letters》2024年第12期26-32,共7页中国光学快报(英文版)

基　　金：supported by the Technology Plan Project of State Administration for Market Regulation(No.2022MK218);the National Key Research and Development Program of China(No.2023YFE0207700);the Research Funding Project of Zhejiang Provincial Department of Education(No.Y202249439)。

摘　　要：In this work,we demonstrate a single-photon lidar based on a polarization suppression underwater backscatter method.The system adds polarization modules at the transmitter and receiver,which increases the full width at half-maximum of the system response function by about 5 times,improving the signal-to-background ratio,ranging accuracy,and imaging effect.Meanwhile,we optimize a sparsity adaptive matching pursuit algorithm that achieves the reconstruction of target images with a 7.3 attenuation length between the system and the target.The depth resolution of the system under different scattering conditions is studied.This work provides a new method for underwater imaging.

关 键 词：underwater 3D imaging photon counting lidar polarization sensitive method 

分 类 号：TN958.98[电子电信—信号与信息处理]