Design and simulation of GaN-based guided-mode resonance filters

Zhao Hao; Zhu Bo; Hu Fangren; Wei Runrun

doi:10.13756/j.gtxyj.2014.06.016

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Design and simulation of GaN-based guided-mode resonance filters

- Design and simulation of GaN-based guided-mode resonance filters
- Study on Optical communication Issue 6, Pages: 55-58(2014)
- 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.2014.06.016
  CLC： TN713
- Published：2014，
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[1]赵昊,诸波,胡芳仁,魏润润.基于氮化镓的导模共振滤波器仿真分析[J].光通信研究,2014(06):55-58.

Zhao Hao, Zhu Bo, Hu Fangren, et al. Design and simulation of GaN-based guided-mode resonance filters. [J]. (6):55-58(2014)
[1]赵昊,诸波,胡芳仁,魏润润.基于氮化镓的导模共振滤波器仿真分析[J].光通信研究,2014(06):55-58. DOI： 10.13756/j.gtxyj.2014.06.016.

Zhao Hao, Zhu Bo, Hu Fangren, et al. Design and simulation of GaN-based guided-mode resonance filters. [J]. (6):55-58(2014) DOI： 10.13756/j.gtxyj.2014.06.016.

摘要

根据严格耦合波理论和等效介质理论

提出了针对C波段、基于半导体材料氮化镓的亚波长导模共振滤波器结构及设计方法。详细探讨了在强调制光栅的高占空比作用下

光栅周期和入射波角度对滤波器反射谱共振波长的影响。在保持滤波效果为高衍射率（共振波长峰值反射率达到99.5%以上）、低旁带和窄线宽的条件下

利用其对入射波角度的敏感性

结合仿真数值提出了一种通过MEMS（微机电系统）平面反射镜调谐入射角角度（0

.07°）

从而线性地控制共振波长输出（调谐范围为36nm）

实现峰值半宽高低于0.8nm的C波段可调滤波器。

Abstract

In the light of the rigorous coupled wave theory and equivalent medium theory

this paper presents the structure of and design method for GaN-based subwavelength guided-mode resonant grating filters for C band of optical communications and discusses in detail the effects of grating period and incident angle on the resonant wavelength of the filter reflectance spectrum under the actions of high duty cycle of strongly modulated grating.While keeping the filtering effects as high diffraction efficiency（resonant wavelength peak reflectivity above 99.5%）

low sideband reflection and narrow linewidth

it uses its sensitivity to the incident angle and in combination with the numerical simulation presents a method for tuning the incident angle（0

.07°）by a MEWS planar reflector

thus linearly controlling the resonant wavelength output in a tuning range of 36 nm and realizing a tunable filter with FWHM lower than 0.8nm for C band of optical communication networks.

关键词

导模共振氮化镓滤波器微机电系统

Keywords

guided-mode resonanceGaNfilterMEMS

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