Investigation of the transmission properties of two-dimentional photonic crystal waveguide microcavity

Gao Yongfeng1; Zhou Ming2

doi:10.13756/j.gtxyj.2011.02.001

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Investigation of the transmission properties of two-dimentional photonic crystal waveguide microcavity

- Investigation of the transmission properties of two-dimentional photonic crystal waveguide microcavity
- Study on Optical communication Issue 2, Pages: 36-38(2011)
- 作者机构：
  
  1. 江苏大学机械学院光信息科学与技术系
  2. 江苏大学光子制造科学与技术中心
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2011.02.001
  CLC： TN252
- Published：2011，
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[1]高永锋,周明.二维光子晶体波导微腔传输特性的研究[J].光通信研究,2011(02):36-38.

Gao Yongfeng1, Zhou Ming2. Investigation of the transmission properties of two-dimentional photonic crystal waveguide microcavity. [J]. (2):36-38(2011)
[1]高永锋,周明.二维光子晶体波导微腔传输特性的研究[J].光通信研究,2011(02):36-38. DOI： 10.13756/j.gtxyj.2011.02.001.

Gao Yongfeng1, Zhou Ming2. Investigation of the transmission properties of two-dimentional photonic crystal waveguide microcavity. [J]. (2):36-38(2011) DOI： 10.13756/j.gtxyj.2011.02.001.

摘要

用时域有限差分（FDTD）法和快速傅里叶变换（FFT）方法计算了二维正方格子光子晶体的点缺陷的谐振频率

研究了点缺陷的半径和背景材料折射率的变化对谐振频率的影响。研究结果表明

谐振归一化频率随点缺陷的半径或背景材料折射率增大而减小

当点缺陷半径增大到0.45r时

谐振中心归一化频率为0.336

波导微腔传输系数最大为98.02%。

Abstract

The resonant frequencies of the waveguide microcavity in the two-dimensional rectangular lattice photonic crystal are computed by using the Finite-Difference Time-Domain（FDTD） and Fast Fourier Transform（FFT） methods and the effects of the variations of the radius of dot defect dielectric rod and the refractive index of the background material on the resonant frequencies investigated.The results show that the resonant normalized frequency decreases with the increase of the radius or the refractive index.When the radius increases to 0.45r

normalized frequency of the resonant center is 0.336 and the transmission coefficient of the waveguide microcavity reaches a maximum of 98.02%.

关键词

光电子学光子晶体波导微腔时域有限差分法谐振频率

Keywords

optoelectronicsphotonic crystalwaveguide microcavityFDTDresonant frequency

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Optical communication research institute,Nanjing University of Posts and Telecommunications

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College of Electronic and Optical Engineering & College of Microelectronics, Nanjing University of Posts and Telecommunications

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