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A concept of integrated acousto-optical switches with multi-modulated-arms in parallel

机译:具有并行多调制臂的集成声光开关的概念

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摘要

An analysis is developed for integrated acousto-optical (AO) switches with multi-modulated-arms in a parallel configuration. The analysis shows that an integrated AO switch with multi-arms can improve contrast ratio largely. The optimum SAW phase of closing arms is presented to achieve highest contrast ratio for the integrated AO switches with multi-modulated-arms. A trade-off of fabrication tolerance and higher on/off contrast ratio is discussed, in which, larger number of modulated arms shows a higher on/off contrast ratio, but a stricter fabrication. The research shows that an AO switch with 8-modulated-arms is an optimum structure as an on/off switch with a higher contrast ratio of −75 dB and less number of arms.
机译:针对具有并联配置的多调制臂的集成声光(AO)开关进行了分析。分析表明,带有多臂的集成AO开关可以大大提高对比度。提出了闭合臂的最佳SAW相位,以实现具有多调制臂的集成AO开关的最高对比度。讨论了制造公差和较高的开/关对比度的折衷方案,其中,更多数量的调制臂显示较高的开/关对比度,但制造更严格。研究表明,带有8调制臂的AO开关是一种最佳结构,因为它具有-75 dB的较高对比度和较少的臂数的开/关开关。

著录项

  • 来源
    《Journal of Optics》 |2017年第3期|277-280|共4页
  • 作者单位

    Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China;

    National Center of Measurement and Testing for East China, National Center of Testing Technology, Shanghai Institute of Measurement and Testing Technology, Shanghai, China;

    State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Weijin Road, Tianjin, China;

    National Center of Measurement and Testing for East China, National Center of Testing Technology, Shanghai Institute of Measurement and Testing Technology, Shanghai, China;

    Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China;

  • 收录信息 美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Integrated acousto-optical switches; Minimum transmissions (on/off contrast ratio); Multi-modulated-arms;

    机译:集成声光开关;最小透射率(开/关对比度);多调制臂;

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