基于磁光子晶体的太赫兹选路开关和分束器
发布时间：2018-12-16 17:59
【摘要】：利用铁氧体材料磁导率随外加磁场强度变化的性质,提出了一种基于二维磁光子晶体的THz选路光开关和分束器。采用PWM(平面波展开法)和FDTD(有限差分时域)法进行了数值计算和仿真分析,结果表明,该选路光开关的插入损耗为0.017dB,消光比高达26.97dB,最大稳定时间约为25.3ps;分束器的附加损耗仅为0.07dB,且分光比几乎为1∶1。利用该结构实现的THz选路开关和分束器,在未来的集成光路中具有很好的应用前景。
[Abstract]:Based on the properties of ferrite material permeability varying with the applied magnetic field intensity, a novel THz path selector and beam splitter based on two-dimensional magneto-photonic crystal is proposed. PWM (plane wave expansion) method and FDTD (finite difference time domain) method are used to carry out numerical calculation and simulation analysis. The results show that the insertion loss of the switch is 0.017 dB, the extinction ratio is up to 26.97 dB, and the maximum stabilization time is about 25.3 pss. The additional loss of the beam splitter is only 0.07dB and the light splitting ratio is almost 1: 1. The THz routing switch and beam splitter realized by this structure have a good application prospect in the future integrated optical path.
【作者单位】： 南京邮电大学光电工程学院;
【分类号】：TN256
[Abstract]:Based on the properties of ferrite material permeability varying with the applied magnetic field intensity, a novel THz path selector and beam splitter based on two-dimensional magneto-photonic crystal is proposed. PWM (plane wave expansion) method and FDTD (finite difference time domain) method are used to carry out numerical calculation and simulation analysis. The results show that the insertion loss of the switch is 0.017 dB, the extinction ratio is up to 26.97 dB, and the maximum stabilization time is about 25.3 pss. The additional loss of the beam splitter is only 0.07dB and the light splitting ratio is almost 1: 1. The THz routing switch and beam splitter realized by this structure have a good application prospect in the future integrated optical path.
【作者单位】： 南京邮电大学光电工程学院;
【分类号】：TN256
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