基于衍射透镜接收的激光雷达特性分析及测试  

Characteristics analysis and test of LiDAR based on diffraction lens receiving

作　　者：王玲[1,2,3,4] 刘博 吴城[1,3,4] 罗兰[1,2,3] 杨玉强 Wang Ling;Liu Bo;Wu Cheng;Luo Lan;Yang Yuqiang(National Key Laboratory of Optical Field Manipulation Science and Technology,Chinese Academy of Sciences,Chengdu,Sichuan 610209,China;Key Laboratory of Science and Technology on Space Optoelectronic Precision Measurement,Chinese Academy of Sciences,Chengdu,Sichuan 610209,China;Institute of Optics and Electronics,Chinese Academy of Sciences,Chengdu,Sichuan 610209,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院光场调控科学与技术国家重点实验室,四川成都610209 [2]中国科学院空间光电精密测量技术重点实验室,四川成都610209 [3]中国科学院光电技术研究所,四川成都610209 [4]中国科学院大学,北京100049

出　　处：《光电工程》2024年第3期143-151,共9页Opto-Electronic Engineering

摘　　要：在激光雷达系统设计中,光学系统的优化与设计是一个重要的研究方向,本文利用衍射光学元件(DOE)的设计自由度高和色散大等优势,将DOE用于激光雷达接收端,同时实现聚焦和滤光作用,降低了光学系统复杂度。本文基于DOE的原理,仿真分析了DOE的光学特性,并且以DOE作为激光雷达的光学接收端,完成了激光雷达测距实验,证明了DOE同时具有聚焦作用和窄带滤光作用,实验结果与仿真基本一致。本文利用DOE在激光雷达中的优势,实现激光雷达的轻量化、集成化和高效化。The optimization and design of optical systems is an important research direction in LiDAR.In this paper,the advantages of diffractive optical elements(DOE),such as high design degree of freedom and large dispersion,are used in the receiving end of LiDAR.The focusing and filtering effects are realized at the same time,which reduces the complexity of the optical system.Based on the principle of diffractive optical elements,the optical characteristics of diffractive optical elements are simulated and analyzed.The LiDAR ranging experiment is completed by using the diffractive optical element as the optical receiving end of the LiDAR.It proved that the diffractive optical elements have both a focusing effect and a narrow-band filtering effect.The experimental results are basically consistent with the simulation.Using the advantages of diffractive optical elements in LiDAR,the lightweight,integration,and high efficiency of LiDAR can be realized.

关 键 词：激光雷达 衍射光学元件 轻量化 滤光 

分 类 号：O439[机械工程—光学工程]