Fano Resonances in Polygonal Tube Fibers

被引：11
|
作者：
Vincetti, Luca [1 ]
Setti, Valerio [1 ]
机构：
[1] Univ Modena & Reggio Emilia, Dept Informat Engn, I-42121 Modena, Italy
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 2012年 / 30卷 / 01期
关键词：
Fano resonances; microstructured fibers; tube fibers; WAVE-GUIDE; HOLLOW; TRANSMISSION; BOUNDARY;
D O I：
10.1109/JLT.2011.2177245
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, the dispersion and the confinement loss properties of polygonal tube fibers are investigated. Fano resonances between the hollow core modes and the high order dielectric modes are found inside transmission bands. A theoretical model based on the approximation of the polygonal tube as a perturbed circular one is proposed. The model is able to predict number and spectral position of the Fano resonances. It is shown that there always is a lower bound condition on the number of sides of the polygonal fiber which guarantees the absence of Fano resonances in a given frequency range. Numerical results are given in order to support the model.
引用
收藏
页码：31 / 37
页数：7
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