An SPSM-PCF with squeezed hexagonal air hole array

Tan Jingwen; Shi Weihua

doi:10.13756/j.gtxyj.2013.04.016

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An SPSM-PCF with squeezed hexagonal air hole array

- An SPSM-PCF with squeezed hexagonal air hole array
- Study on Optical communication Issue 4, Pages: 34-36(2013)
- 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.2013.04.016
  CLC： TN818
- Published：2013，
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[1]谭经文,施伟华.一种压缩六边形单偏振单模光子晶体光纤[J].光通信研究,2013(04):34-36.

Tan Jingwen, Shi Weihua. An SPSM-PCF with squeezed hexagonal air hole array. [J]. (4):34-36(2013)
[1]谭经文,施伟华.一种压缩六边形单偏振单模光子晶体光纤[J].光通信研究,2013(04):34-36. DOI： 10.13756/j.gtxyj.2013.04.016.

Tan Jingwen, Shi Weihua. An SPSM-PCF with squeezed hexagonal air hole array. [J]. (4):34-36(2013) DOI： 10.13756/j.gtxyj.2013.04.016.

摘要

提出了一种新型压缩六边形空气孔阵列的SPSM-PCF（单偏振单模光子晶体光纤）结构

并采用全矢量有限元方法以完美匹配层为边界条件研究了该光纤的限制损耗特性随结构参量变化的规律。数值模拟结果表明

在入射波长为1.550μm时

快轴模的限制损耗很大

而慢轴模的限制损耗随包层层数的增加而减小

当包层层数Nr分别为6、8和10时

限制损耗分别为4.534×10-4、2.236×10-5和9.597×10-6 dB/m。因此

快轴模在极短的光纤长度内快速衰减

从而实现仅有慢轴模且限制损耗低于0.1dB/km的低损耗单模单偏振运转。

Abstract

A novel Single-Polarization Single-Mode Photonic Crystal Fiber（SPSM-PCF）with squeezed hexagonal air holes array is proposed and the regular pattern of its confinement loss characteristics changes with the structural parameters is investigated by using a full-vector Finite Element Method（FEM）with a Perfect Matched Layer（PML）as the boundary condition.Numerical simulation results indicate that the confinement loss of the fast-axis mode is large whereas that of the slow-axis mode decreases with the increase of the number of the air-hole rings Nr

e.g.they are 4.534×10-4

2.236×10-5

9.597×10-6 dB/m at 1.550!m when Nr=6

10respectively.As the fast-axis mode is fast attenuated within a short length of fiber

a SPSM-PCF with the slow-axis mode only and the confinement loss less than 0.1dB/km is obtained.

关键词

光子晶体光纤全矢量有限元方法避免相交效应单偏振单模

Keywords

PCFfull-vector FEMavoided-crossing effectSPSM

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