光子晶体光纤结构与掺杂对受激布里渊散射快光的影响

牛帅斌; 侯尚林; 雷景丽; 王道斌; 李晓晓

doi:10.3788/fgxb20183906.0884

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光子晶体光纤结构与掺杂对受激布里渊散射快光的影响

发光学应用及交叉前沿 | 更新时间：2020-08-12

- 光子晶体光纤结构与掺杂对受激布里渊散射快光的影响
- Influence of Structure and Doping on Stimulated Brillouin Scattering Fast Light in Photonic Crystal Fibers
- 发光学报 2018年39卷第6期页码：884-890
- 作者机构：
  
  兰州理工大学理学院, 甘肃兰州 730050
- 作者简介：
- 基金信息：
  
  国家自然科学基金（61665005，61167005，61367007）资助项目()
- DOI：10.3788/fgxb20183906.0884
  中图分类号： TN929.11
- 纸质出版日期：2018-6-5，
  
  网络出版日期：2018-1-18，
  
  收稿日期：2017-9-27，
  
  修回日期：2017-12-10，
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牛帅斌, 侯尚林, 雷景丽等. 光子晶体光纤结构与掺杂对受激布里渊散射快光的影响[J]. 发光学报, 2018,39(6): 884-890

NIU Shuai-bin, HOU Shang-lin, LEI Jing-li etc. Influence of Structure and Doping on Stimulated Brillouin Scattering Fast Light in Photonic Crystal Fibers[J]. Chinese Journal of Luminescence, 2018,39(6): 884-890
牛帅斌, 侯尚林, 雷景丽等. 光子晶体光纤结构与掺杂对受激布里渊散射快光的影响[J]. 发光学报, 2018,39(6): 884-890 DOI： 10.3788/fgxb20183906.0884.

NIU Shuai-bin, HOU Shang-lin, LEI Jing-li etc. Influence of Structure and Doping on Stimulated Brillouin Scattering Fast Light in Photonic Crystal Fibers[J]. Chinese Journal of Luminescence, 2018,39(6): 884-890 DOI： 10.3788/fgxb20183906.0884.

摘要

由受激布里渊散射三波耦合方程导出了在小信号条件下的快光时间提前量，通过全矢量有限元法模拟了光子晶体光纤占空比和GeO

掺杂质量分数对布里渊频移、时间提前量、脉冲展宽因子及脉冲形变的影响。结果表明，布里渊频移随着占空比和掺杂质量分数的增大而减小。在保持泵浦功率为20 mW和快光传输长度为10 m的条件下，时间提前量随着占空比的增大而增大，随着掺杂质量分数的增大而减小。脉冲展宽因子与时间提前量变化趋势相反。当占空比为0.8，Ge掺杂质量分数为18%时，能够实现快光时间提前量为29.7 ns，脉冲展宽因子为0.88。布里渊阈值随着占空比的增大而减小，随着掺杂质量分数的增大而增大。

Abstract

Time advancement of fast light in small signal regime was derived from three wave coupling equations of stimulated Brillouin scattering(SBS) in photonic crystal fibers(PCFs)

and the influence of air-filling ratio and doping(doped GeO

) on Brillouin frequency shift

time advancement

pulse broadening factor and pulse deformation were simulated by full vectorial finite element method. The results show that the Brillouin frequency shift decreases with the increase of air-filling ratio and doping mass fraction. The time advancement increases with the increase of air filling factor

but decreases with the increase of doping mass fraction at a given pump power of 20 mW and fiber length of 10 m. The varying trend of broadening factor is just contrary to that of the time advancement. The time advancement of 29.7 ns and the pulse broadening factor of 0.88 are achieved at the air filling factor of 0.8 and GeO

doping mass fraction of 18%. The Brillouin threshold decreases with the increment of filling factor and decrement of doping mass fraction.

关键词

受激布里渊散射光子晶体光纤快光GeO2掺杂

Keywords

stimulated Brillouin scatteringphotonic crystal fiberfast lightGeO2 doped

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