Analysis of Flattened-Dispersion Characteristic of a New Type of Double-Mode Photonic Crystal Fiber

YANG Jing; SHI Wei-hua

doi:10.13756/j.gtxyj.2016.06.010

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Analysis of Flattened-Dispersion Characteristic of a New Type of Double-Mode Photonic Crystal Fiber

- Analysis of Flattened-Dispersion Characteristic of a New Type of Double-Mode Photonic Crystal Fiber
- Study on Optical communication Issue 6, Pages: 36-38(2016)
- 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.2016.06.010
  CLC： TN253
- Published：2016，
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[1]杨静,施伟华.新型双模光子晶体光纤的平坦色散特性分析[J].光通信研究,2016(06):36-38+67.

YANG Jing, SHI Wei-hua. Analysis of Flattened-Dispersion Characteristic of a New Type of Double-Mode Photonic Crystal Fiber. [J]. (6):36-38(2016)
[1]杨静,施伟华.新型双模光子晶体光纤的平坦色散特性分析[J].光通信研究,2016(06):36-38+67. DOI： 10.13756/j.gtxyj.2016.06.010.

YANG Jing, SHI Wei-hua. Analysis of Flattened-Dispersion Characteristic of a New Type of Double-Mode Photonic Crystal Fiber. [J]. (6):36-38(2016) DOI： 10.13756/j.gtxyj.2016.06.010.

摘要

设计了一种具有色散平坦特性的双模PCF（光子晶体光纤）

采用全矢量FEM（有限元法）计算了光纤的模式及色散特性

分析了光纤结构对色散平坦性的影响。结果表明

当PCF的孔间距Λ=10μm

相对孔径d1/Λ=0.55、d2/Λ=0.65和d3/Λ=0.75时

基模和二阶模的限制损耗均小于1dB/m

两种模式的有效折射率差值Δneff

10-3

实现了稳定的双模传输。在C波段

色散斜率介于-0.012 36

.321 91ps/（nm2·km）之间

波长1 550nm处

基模和二阶模的色散斜率分别为0.093 80和0.038 97ps/（nm2·km）

实现了C波段的平坦色散。

Abstract

In this paper

a new type of double-mode photonic crystal fiber with flattened-dispersion is designed.The transmission and dispersion properties are simulated by Finite Element Method（FEM）.The impacts of the parameters of the PCF on the dispersion properties are analyzed.The results show that the double-mode PCF can gain stable transmission of the two modes when the structural parameters of PCF areΛ=10μm

d1/Λ=0.55

d2/Λ=0.65

d3/Λ=0.75.The confinement loss of each mode is less than 1dB/m

and the effective refractive index difference is larger than 10-3.The dispersion slope values ranges from-0.012 36ps/（nm2·km）to 0.321 91ps/（nm2·km）in the C band.The dispersion slope value in 1 550 nm of each mode are 0.093 80ps/（nm2·km）、0.038 97ps/（nm2·km）

which means that the PCF can achieve dispersion-flattened transmission in the wavelength range of communication.

关键词

少模光纤光子晶体光纤有限元法色散

Keywords

few-mode fiberphotonic crystal fiberfinite element methoddispersion

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