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Design and experimental demonstration on improved high order grating for wide angle beam steering of liquid crystal optical phased array

机译:液晶光学相控阵广角光束控制的改进高阶光栅设计与实验演示

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摘要

To realize a non-mechanical laser beam deflector with a wide steering range, improved high order grating method (i-HOG) was theoretically proposed on the promising optical phased array device using the material of liquid crystal. In this paper, experimental prototype and results are presented to verify the performance on the wider steering range when the method of i-HOG was applied on the corresponding device. To satisfy the requirement on much deeper phase retardation, the optical film of liquid crystal was redesigned and fabricated as well as driving hardware. Comparing with the conventional methods where the modulo of phase delay is 2n, liquid crystal optical phased array using the method of i-HOG can succeed a double steering range. Meanwhile, experimental results also show better diffraction efficiency.
机译:为了实现具有宽转向范围的非机械激光偏转器,理论上在使用液晶材料的有前途的光学相控阵器件上提出了改进的高阶光栅方法(i-HOG)。本文提出了实验样机和结果,以验证将i-HOG方法应用于相应设备时在较宽转向范围内的性能。为了满足更深的相位延迟的要求,重新设计和制造了液晶光学膜以及驱动硬件。与传统的相位延迟模为2n的方法相比,使用i-HOG方法的液晶光学相控阵可以实现双倍转向范围。同时,实验结果也显示出更好的衍射效率。

著录项

  • 来源
    《》|2017年|100960Q.1-100960Q.9|共9页
  • 会议地点 San Francisco(US)
  • 作者单位

    School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China,School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 610054, China;

    School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 610054, China;

    School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China;

    Research Institute of Electronic Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Wide angle beam steering; liquid crystal optical phased array; improved high order grating (i-HOG); phase retardation; experimental demonstration;

    机译:广角光束转向;液晶光学相控阵;改进的高阶光栅(i-HOG);相位延迟实验示范;

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