THz Routing Switch and Beam Splitter Based on Magnetic Photonic Crystals

GAN Yu-ying; LI Pei-li; ZHANG Yuan-fang

doi:10.13756/j.gtxyj.2017.01.014

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THz Routing Switch and Beam Splitter Based on Magnetic Photonic Crystals

- THz Routing Switch and Beam Splitter Based on Magnetic Photonic Crystals
- Study on Optical communication Issue 1, Pages: 44-46(2017)
- 作者机构：
  
  南京邮电大学光电工程学院
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2017.01.014
  CLC： TN256
- Published：2017，
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[1]甘雨莹,李培丽,张元方.基于磁光子晶体的太赫兹选路开关和分束器[J].光通信研究,2017(01):44-46.

GAN Yu-ying, LI Pei-li, ZHANG Yuan-fang. THz Routing Switch and Beam Splitter Based on Magnetic Photonic Crystals. [J]. (1):44-46(2017)
[1]甘雨莹,李培丽,张元方.基于磁光子晶体的太赫兹选路开关和分束器[J].光通信研究,2017(01):44-46. DOI： 10.13756/j.gtxyj.2017.01.014.

GAN Yu-ying, LI Pei-li, ZHANG Yuan-fang. THz Routing Switch and Beam Splitter Based on Magnetic Photonic Crystals. [J]. (1):44-46(2017) DOI： 10.13756/j.gtxyj.2017.01.014.

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

Considering the property that magnetic permeability of the ferrite material changes under the control of an external magnetic field

a novel scheme of THz routing optical switch and beam splitter

based on two-dimensional magnetic photonic crystals

is proposed.Theoretical analysis and numerical simulation is conducted by Plane Wave Method（PWM）and FiniteDifference Time-Domain（FDTD）.The results show that

the insertion loss of the routing optical switch is 0.017 dB

the extinction ratio is 26.97 dB

and the maximum stability time is 25.3ps.Moreover

the additional loss of the beam splitter is only0.07 dB

and the splitting ratio is nearly 1∶1.The routing optical switch and beam splitter are achieved by using these two-dimensional magnetic photonic crystals

which have important application prospect in future integrated optical circuit.

关键词

选路光开关分束器太赫兹波磁光子晶体

Keywords

routing switchbeam splitterTHz wavemagnetic photonic crystal

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