首页> 外文期刊>Optical and quantum electronics >Investigation on push-pull polymer Mach-Zehnder interferometer electro-optic switches using improved 3-D mode propagation analysis method
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Investigation on push-pull polymer Mach-Zehnder interferometer electro-optic switches using improved 3-D mode propagation analysis method

机译:推挽式聚合物马赫曾德尔干涉仪电光开关的改进3-D模式传播分析方法研究

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摘要

By introducing normalized mode excitation coefficient and total mode excitation coefficient, we improve the 3-D mode propagation analysis (MPA) method for convenient design and analysis of multimode interference (MMI) coupler. With the improved 3-D MPA method and point-matching method, we present a novel formulation technique to analyze the low- and high-frequency characteristics for the impedance-matched polymer Mach-Zehnder interferometer electro-optic (EO) switch based on MMI couplers. As an application, under 1550 nm, optimization and simulation performed for the designed device reveal low driving voltage of 1.375 V with short EO region length of 5 mm. The insertion loss and extinction ratio are less than 3.75 dB and more than 42dB, respectively. The microwave characteristic impedance is about 49.6 £2, and due to the less mismatch between lightwave velocity and microwave velocity, the estimated cutoff switching frequency is up to 263 GHz with the 10-90% rise time and fall time about 1.90 ps under the operation of step-style square-wave switching signal. This theoretical cutoff switching frequency is almost 1.53 times of that of our previous reported shielded EO switch with similar design technique.
机译:通过引入归一化模式激励系数和总模式激励系数,我们改进了3-D模式传播分析(MPA)方法,以便于设计和分析多模式干扰(MMI)耦合器。通过改进的3-D MPA方法和点匹配方法,我们提出了一种新颖的配方技术,用于分析基于MMI的阻抗匹配聚合物Mach-Zehnder干涉仪电光(EO)开关的低频和高频特性耦合器。作为一种应用,在1550 nm以下,对设计的器件进行的优化和仿真显示出1.375 V的低驱动电压和5 mm的短EO区长度。插入损耗和消光比分别小于3.75 dB和大于42dB。微波特性阻抗约为49.6£2,并且由于光波速度和微波速度之间的失配较少,因此在该操作下,上升截止时间为10-90%,下降时间约为1.90 ps,估计截止切换频率高达263 GHz。步进式方波切换信号该理论截止开关频率几乎是我们先前报道的采用类似设计技术的屏蔽EO开关的理论截止频率的1.53倍。

著录项

  • 来源
    《Optical and quantum electronics》 |2011年第5期|p.327-346|共20页
  • 作者单位

    State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering,Jilin University, Changchun 130012, People's Republic of China;

    State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering,Jilin University, Changchun 130012, People's Republic of China;

    State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University,Changchun 130012, People's Republic of China;

    State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering,Jilin University, Changchun 130012, People's Republic of China;

    State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering,Jilin University, Changchun 130012, People's Republic of China;

    State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering,Jilin University, Changchun 130012, People's Republic of China;

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

    electro-optic (eo) switch; cutoff switching frequency; switching time; switching voltage; point-matching method; 3-d mode propagation analysis (mpa) method;

    机译:光电开关截止开关频率;切换时间;开关电压;点匹配法3-D模式传播分析(MPA)方法;

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