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低损耗宽带近零色散高非线性光子晶体光纤设计

杜海龙 郑义 庞学民

杜海龙, 郑义, 庞学民. 低损耗宽带近零色散高非线性光子晶体光纤设计[J]. 强激光与粒子束, 2021, 33: 091005. doi: 10.11884/HPLPB202133.210221
引用本文: 杜海龙, 郑义, 庞学民. 低损耗宽带近零色散高非线性光子晶体光纤设计[J]. 强激光与粒子束, 2021, 33: 091005. doi: 10.11884/HPLPB202133.210221
Du Hailong, Zheng Yi, Pang Xuemin. Design of photonic crystal fibers with low loss broadband near-zero dispersion and high nonlinearity[J]. High Power Laser and Particle Beams, 2021, 33: 091005. doi: 10.11884/HPLPB202133.210221
Citation: Du Hailong, Zheng Yi, Pang Xuemin. Design of photonic crystal fibers with low loss broadband near-zero dispersion and high nonlinearity[J]. High Power Laser and Particle Beams, 2021, 33: 091005. doi: 10.11884/HPLPB202133.210221

低损耗宽带近零色散高非线性光子晶体光纤设计

doi: 10.11884/HPLPB202133.210221
基金项目: 河南省基础与前沿技术研究计划项目(162300410269);河南省科技攻关项目(202102310630,202102310201)
详细信息
    作者简介:

    杜海龙,duhailong9804@163.com

  • 中图分类号: TN929.11

Design of photonic crystal fibers with low loss broadband near-zero dispersion and high nonlinearity

  • 摘要: 提出了一种兼具低损耗、宽带近零色散和高非线性的光子晶体光纤结构,该结构光纤包层空气孔直径从纤芯向外层方向渐进增加;应用多极法,通过改变包层空气孔间距Λ、各层空气孔直径和空气孔层数Nr,对光子晶体光纤色散、损耗和非线性特性进行分析,获得了各特性随包层结构参数变化的规律,并最终设计出最佳结构参数。计算结果表明,该结构光纤存在3个零色散点,在1.25~1.55 μm较宽的波长范围内,色散值波动小于0.27 ps·nm−1·km−1,色散斜率小于0.008 ps·km−1·nm−2,1.55 μm波长处损耗为0.021 dB/km,在常用的飞秒激光泵浦波长0.8,1.06,1.55 μm处非线性系数分别达到78.6,60.4,38.2 W−1·km−1
  • 图  1  PCF截面结构

    Figure  1.  Cross-section of PCF

    图  2  统一孔径和渐进孔径的色散比较

    Figure  2.  Dispersion comparison between uniform and progressive aperture

    图  3  统一孔径和渐进孔径的损耗比较

    Figure  3.  Loss comparison between uniform and progressive aperture

    图  4  Λ不同的色散比较

    Figure  4.  Dispersion with different air hole spacing

    图  6  Λ不同的损耗比较

    Figure  6.  Loss with different air hole spacing

    图  5  Λ不同的非线性比较

    Figure  5.  Nonlinearity with different air hole spacing

    图  7  d1不同的色散

    Figure  7.  Dispersion with different d1

    图  9  d1不同的损耗

    Figure  9.  Loss with different d1

    图  8  d1不同的非线性

    Figure  8.  Nonlinearity with different d1

    图  10  d2不同色散比较

    Figure  10.  Dispersion with different d2

    图  11  d2不同的非线性比较

    Figure  11.  Nonlinearity with different d2

    图  12  d3不同的色散比较

    Figure  12.  Dispersion with different d3

    图  13  d4不同的色散比较

    Figure  13.  Dispersion with different d4

    图  14  色散系数

    Figure  14.  Dispersion

    图  15  色散斜率

    Figure  15.  Dispersion slope

    表  1  Nr不同的PCF损耗

    Table  1.   Loss with different Nr

    L/μmloss/(dB·km−1
    Nr=4Nr=5Nr=6
    1.311.930.0490.0014
    1.5545.31.420.053
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-06-03
  • 修回日期:  2021-08-31
  • 网络出版日期:  2021-09-14
  • 刊出日期:  2021-09-24

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