Effects of structural parameters of honeycomb-like PCF on bandgap properties

Wei Hongyan; Tang Yongguang

doi:10.13756/j.gtxyj.2015.05.011

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Effects of structural parameters of honeycomb-like PCF on bandgap properties

- Effects of structural parameters of honeycomb-like PCF on bandgap properties
- Study on Optical communication Issue 5, Pages: 35-37(2015)
- 作者机构：
  
  廊坊师范学院
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2015.05.011
  CLC： TN253
- Published：2015，
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[1]魏红彦,唐永光.类蜂巢PCF的结构参数对带隙特性的影响[J].光通信研究,2015(05):35-37+78.

Wei Hongyan, Tang Yongguang. Effects of structural parameters of honeycomb-like PCF on bandgap properties. [J]. (5):35-37(2015)
[1]魏红彦,唐永光.类蜂巢PCF的结构参数对带隙特性的影响[J].光通信研究,2015(05):35-37+78. DOI： 10.13756/j.gtxyj.2015.05.011.

Wei Hongyan, Tang Yongguang. Effects of structural parameters of honeycomb-like PCF on bandgap properties. [J]. (5):35-37(2015) DOI： 10.13756/j.gtxyj.2015.05.011.

摘要

PCF（光子晶体光纤）在实际拉制过程中包层会形成间隙孔。文章提出一种类蜂巢晶格结构的光纤

利用全矢量PWEM（平面波展开法）分析了该结构的圆形和正六边形纤芯的带隙特性

发现纤芯形状对带隙影响作用比较小

验证了PBG（光子带隙）主要是由包层有序排列的空气孔而形成的。计算分析了包层间隙孔直径dint、包层孔节距Λ和包层空气填充率f对带隙特性的影响。通过模拟计算发现

在一定dint范围内

增大f以及减小Λ

带隙宽度均会增大

并且带隙向高频方向移动。采用实际拉制的光纤进行模场面积计算和PBG分布的理论研究

发现该结构光纤的光主要集中在基模传输

同时在可见光波范围内存在PBG。

Abstract

Interstitial holes are usually formed in the cladding of Photonic Crystal Fibers（PCF）in the actual drawing process.This paper presents an optical fiber in honeycomb-like lattice structure.Using the full-vector Plane Wave Expansion（PWE）method

it analyzes the bandgap properties of its circular and hexagonal cores

finds that the impacts of the core shape on the bandgap is relatively small and verifies that the Photonic Band Gap（PBG）is formed mainly due to the orderly arranged air holes in the cladding.Furthermore

it calculates and analyzes the effects of the interstitial hole diameter dint

hole pitchΛand air filling ratio fon the bandgap properties.The analog computation results indicate that in certain scope of dint

the bandgap width increases with both increasing fand reducingΛ

and the bandgap shifts towards the high frequency side.Finally

from the mode field area computation of the actually drawn fibers and the theoretical study of PBG distribution

it finds that the light in fibers in this structure mainly focuses on basemode transmission and there exist PBGs in the range of visible light waves.

关键词

光子晶体光纤类蜂巢结构带隙全矢量平面波展开法

Keywords

PCFhoneycomb-like structurebandgapfull-vector PWEM

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Related Institution

Institute of Physicals and Electronic Engineering, Harbin Normal University

Bell Honors School, Nanjing University of Posts and Telecommunications

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

Advanced Photonic Technology Lab,College of Electronic and Optical Engineering,Nanjing University of Posts and Telecommunications

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