金涂覆光子晶体光纤偏振滤波器的特性分析

doi:10.12068/j.issn.1005-3026.2018.11.005

东北大学学报:自然科学版 ›› 2018, Vol. 39 ›› Issue (11): 1540-1544.DOI: 10.12068/j.issn.1005-3026.2018.11.005

金涂覆光子晶体光纤偏振滤波器的特性分析

闫欣，王海洋

(东北大学信息科学与工程学院，辽宁沈阳110819)

收稿日期:2017-08-26 修回日期:2017-08-26 出版日期:2018-11-15 发布日期:2018-11-09
通讯作者: 闫欣
作者简介:闫欣(1978-)，女，辽宁沈阳人，东北大学副教授.冯明杰(1971-)，男，河南禹州人，东北大学副教授; 王恩刚(1962-)，男，辽宁沈阳人，东北大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目(61775032，61574143，51607029).

Characteristic Analysis of Gold-Coated Photonic Crystal Fiber Polarization Filter

YAN Xin， WANG Hai-yang

School of Information Science & Engineering， Northeastern University， Shenyang 110819， China.

Received:2017-08-26 Revised:2017-08-26 Online:2018-11-15 Published:2018-11-09
Contact: YAN Xin
About author:-
Supported by:
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摘要/Abstract

摘要： 设计了一种基于表面等离子体共振的光子晶体光纤偏振滤波器.在空气孔中选择性金涂覆使表面等离子体模式与纤芯模式共振.利用有限元法分析了改变结构参数对滤波器性能的影响.数值模拟结果表明金薄膜厚度和空气孔直径能够优化表面等离子体模式及纤芯模式的共振峰位置和强度，在波长1.31μm 处x偏振方向的损耗到达740.5dB/cm，y偏振方向的损耗很低且x，y方向的损耗峰明显地被分开.利用这些特性设计出一种新型的工作在通信波段的光子晶体光纤偏振滤波器.

关键词: 光子晶体光纤, 表面等离子体共振, 偏振滤波器, 损耗峰, 金涂覆

Abstract: A photonic crystal fiber polarization filter based on surface plasmon resonance is proposed and investigated. The gold is coated into the selected air holes in order to make surface plasmon modes and core modes resonate. The finite element method is used to analyze the effect on the filter performance by changing the parameters. Numerical simulation results show that the positions of resonance peaks and the resonance strength of core mode and surface plasmon mode can be well adjusted by changing the thickness of gold film and diameter of air holes. The confinement loss in x-polarization can reach to 740.5dB/cm at 1.31μm， the confinement loss in y-polarization is very low， and the loss peaks in x-polarization and y-polarization are separated by a large distance. Then a novel kind of photonic crystal fiber polarization filter working at the communication wavelength is designed.

Key words: photonic crystal fiber, surface plasmon resonance, polarization filter, loss peak, gold-coated

中图分类号:

TN253

闫欣，王海洋. 金涂覆光子晶体光纤偏振滤波器的特性分析[J]. 东北大学学报:自然科学版, 2018, 39(11): 1540-1544.

YAN Xin， WANG Hai-yang. Characteristic Analysis of Gold-Coated Photonic Crystal Fiber Polarization Filter[J]. Journal of Northeastern University Natural Science, 2018, 39(11): 1540-1544.

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金涂覆光子晶体光纤偏振滤波器的特性分析

Characteristic Analysis of Gold-Coated Photonic Crystal Fiber Polarization Filter

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