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Optimization of the silicon-based aperiodic optical phased array antenna

机译:基于硅的非周期性光学相控阵天线的优化

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摘要

Beam engineering is one of the most important functionalides in light detection and ranging (LiDAR). In this work, a silicon optical phased array (OPA) is employed to control the beam profile. Machine-learning-based genetic algorithm optimization is utilized to suppress the sidelobes of the far field pattern assuming the random distribution of aperiodic arrays. The optimized mainlobe position versus wavelength relationship in two-dimensional aperiodic arrays is distinctly different from prior works. Analysis was performed to show the effect of fabrication error of arrays on the side mode suppression ratio. Our study provides an effective pathway to optimize the random distributed OPAs within a controllable time frame among the vast number of parameters. (C) 2021 Optical Society of America
机译:光束工程是激光雷达中最重要的功能之一。在这项工作中,硅光学相控阵(OPA)被用来控制光束轮廓。在假设非周期阵列随机分布的情况下,利用基于机器学习的遗传算法优化来抑制远场方向图的旁瓣。在二维非周期阵列中,优化的主瓣位置与波长关系明显不同于以往的工作。分析了阵列制作误差对侧模抑制比的影响。我们的研究为在可控的时间范围内优化大量参数中的随机分布OPA提供了一条有效途径。(2021)美国光学学会

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  • 来源
    《Optics Letters》 |2021年第4期|共4页
  • 作者单位

    Yangzhou Qunfa Heat Exchanged Co Ltd Hanjiang Ind Area 21 Muyang Rd Yangzhou Jiangsu Peoples R China;

    Yangzhou Qunfa Heat Exchanged Co Ltd Hanjiang Ind Area 21 Muyang Rd Yangzhou Jiangsu Peoples R China;

    Yangzhou Qunfa Heat Exchanged Co Ltd Hanjiang Ind Area 21 Muyang Rd Yangzhou Jiangsu Peoples R China;

    Univ Michigan Dept Elect &

    Comp Engn Integrated Nano Optoelect Lab 4901 Evergreen Rd Dearborn MI 48128 USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
  • 关键词

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