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| 短长度的双椭圆纤芯光子晶体光纤偏振分束器 | |
| 引用本文： | 李荣敏,曹晔,童峥嵘.短长度的双椭圆纤芯光子晶体光纤偏振分束器[J].中国激光,2012,39(10):1005004-105. |
| 作者姓名： | 李荣敏 曹晔 童峥嵘 |
| 作者单位： | 李荣敏:天津理工大学， 薄膜电子与通信器件重点实验室及智能计算及软件新技术重点实验室， 天津 300384 曹晔:天津理工大学， 薄膜电子与通信器件重点实验室及智能计算及软件新技术重点实验室， 天津 300384 童峥嵘:天津理工大学， 薄膜电子与通信器件重点实验室及智能计算及软件新技术重点实验室， 天津 300384 |
| 基金项目： | 国家自然科学基金(61107052)资助课题。 |
| 摘 要： | 基于双折射效应设计了一种新型的双椭圆纤芯光子晶体光纤(PCF)偏振分束器,通过在每个纤芯处引入一对大空气孔和一对小空气孔来构成椭圆纤芯。采用全矢量有限元法(FEM)和半矢量光束传播法数值模拟偏振分束器的性能,结果表明,在工作波长1.55μm处,光纤长度为544μm时,X、Y方向偏振光可实现分离,且消光比达到-43.75dB,消光比小于-10dB的带宽为80nm。这为设计具有高消光比和极短长度的双芯光子晶体光纤偏振分束器提供了一种新的结构。 |
| 关 键 词： | 光纤光学 双芯光子晶体光纤 偏振分束器 全矢量有限元法 半矢量光束传播法 |
| 收稿时间： | 2012/5/30 |
Short Length Polarization Splitter Based on Dual Elliptical-Core Photonic Crystal Fiber |
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| Li Rongmin Cao Ye Tong Zhengrong.Short Length Polarization Splitter Based on Dual Elliptical-Core Photonic Crystal Fiber[J].Chinese Journal of Lasers,2012,39(10):1005004-105. | |
| Authors: | Li Rongmin Cao Ye Tong Zhengrong |
| Affiliation: | Li Rongmin Cao Ye Tong Zhengrong(Key Laboratory of Film Electronics and Communication Devices and Key Laboratory of Intelligent Computing and Novel Software Technology,Tianjin University of Technology,Tianjin 300384,China) |
| Abstract: | Based on the birefringence effect, a novel polarization splitter based on dual elliptical-core photonic crystal fiber (PCF) is proposed, the elliptical-core through introducing a pair of big air holes and a pair of small air holes in every core. The full-vector finite element method (FEM) and the semi-vector beam propagation method (BPM) are employed to analyze the performance of the splitter. Numerical simulations demonstrate that it is possible to obtain a 544 μm long polarization splitter, and the polarized light extinction ratio is -43.75 dB at the wavelength of 1.55 μm. Besides, the bandwith is over 80 nm when the extinction ratio is less than -10 dB. Such design provides a new approach to get highly extinction ratio and short length polarization splitter based on dual-core photonic crystal fiber. |
| Keywords: | fiber optics dual-core photonic crystal fiber polarization splitter full-vector finite element method semi-vector beam propagation method |
| 本文献已被 CNKI 等数据库收录！ | |