激光技术2017，Vol.41Issue(5)：684-687,4.DOI:10.7510/jgjs.issn.1001-3806.2017.05.013
激光测风雷达折射式收发同轴光学天线设计
Design of refractive antennas with coaxial transceiver for wind lidars
摘要
Abstract
To improve environmental adaptability of an optical system, an athermalization refractive antenna with coaxial transceiver was designed by the passive athermalization method combined with the optics and machinery.By using ZEMAX software, the image quality of the designed antenna was simulated and analyzed when the working distance ranged from 50m to 3000m and the environment temperature ranged from-45℃ to 65℃.After building experimental platform and measuring the actual image quality, the simulation results were verified.The results show that the optical path difference is less than 0.25λ and the optical quality of the designed antenna is close to the diffraction limit within the detection range.Moreover, within the scope of environmental temperature, the energy of the 90% of the spots is concentrated in the maximum coherence length.And the spot energy distribution of each field is uniform.The research can provide the theoretical basis for the design of the optical parameters and structure parameters of the antenna.关键词
光学设计/激光测风雷达/折射式天线/收发同轴/消热差Key words
optical design/wind lidar/refractive antenna/coaxial transceiver/athermalization分类
信息技术与安全科学引用本文复制引用
彭涛,陶刚,姜勇,周鼎富..激光测风雷达折射式收发同轴光学天线设计[J].激光技术,2017,41(5):684-687,4.
