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Fast magneto-optic switch based on nanosecond pulses

机译：基于纳秒脉冲的快速磁光开关

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摘要

The paper studies an all fiber high-speed magneto-optic switch which includes an optical route, a nanosecond pulse generator, and a magnetic field module in order to reduce the switching time of the optical switch in the all optical network. A compact nanosecond pulse generator can be designed based on the special character of the avalanche transistor. The output current pulse of the nanosecond pulse generator is less than 5 ns, while the pulse amplitude is more than 100 V and the pulse width is about 10 to 20 ns, which is able to drive a high-speed magnetic field. A solenoid is used as the magnetic field module, and a bismuth-substituted rare-earth iron garnet single crystal is chosen as the Faraday rotator. By changing the direction of current in the solenoid quickly, the magnetization of the magneto-optic material is reversed, and the optical beam can be rapidly switched. The experimental results indicate that the switching time of the device is about 100 to 400 ns, which can partially meet the demand of the rapid development of the all optical network.
机译：本文研究了一种全光纤高速磁光交换机，该交换机包括一条光路，一个纳秒脉冲发生器和一个磁场模块，以减少全光网络中光交换机的切换时间。可以根据雪崩晶体管的特殊特性设计紧凑的纳秒脉冲发生器。纳秒脉冲发生器的输出电流脉冲小于5 ns，而脉冲幅度大于100 V，脉冲宽度约为10到20 ns，能够驱动高速磁场。使用螺线管作为磁场模块，选择铋取代的稀土铁石榴石单晶作为法拉第转子。通过快速改变螺线管中电流的方向，磁光材料的磁化强度反转，光束可以快速切换。实验结果表明，该器件的切换时间约为100到400 ns，可以部分满足全光网络快速发展的需求。

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  • 来源
    《Optical engineering》 |2011年第9期|p.095001.1-095001.5|共5页
  • 作者

    Zi-Hua Weng; Jian-Jian Ruan; Shao-Han Lin; Zhi-Min Chen;

  • 作者单位

    Xiamen University School of Physics and Mechanical and Electrical Engineering Xiamen 361005, China;

    Xiamen University School of Physics and Mechanical and Electrical Engineering Xiamen 361005, China;

    Xiamen University School of Physics and Mechanical and Electrical Engineering Xiamen 361005, China;

    Xiamen University School of Physics and Mechanical and Electrical Engineering Xiamen 361005, 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

    magneto-optics; switches; optical materials; nonlinear optics; optical communications; polarization;

    机译：磁光开关;光学材料非线性光学光通信;偏振;

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