The asymmetric coupler based on the dual-core PCF

被引：12
|
作者：
Li, Hefei [1 ]
Xu, Cuiping [1 ]
Tian, Chunyu [1 ]
Wu, Wanqing [1 ]
Xu, Feng [1 ]
Yu, Benli [1 ]
机构：
[1] Anhui Univ, Sch Phys & Mat Sci, Hefei 230039, Peoples R China
来源：
OPTIK | 2016年 / 127卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Photonic crystal fiber; Coupler; Coupling length; Wavelength flattened; PHOTONIC CRYSTAL FIBER; NONUNIFORMITIES; PROPAGATION; DESIGN;
D O I：
10.1016/j.ijleo.2015.10.022
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A novel asymmetric dual-core PCF coupler with wavelength-flattened response is proposed and its coupling characteristics of this coupler are investigated using full-vector finite element method and beam propagation method. Numerical simulation result shows that the wavelength-flattened response range as wider as hundreds of nanometer and the coupling length can be reduced down to the level of micrometer. The coupling properties can be tunable by changing the size of central air hole of the PCF coupler. In addition, the polarized-mode coupling shows that the proposed asymmetric dual-core PCF coupler is insensitive to the polarized mode. (C) 2015 Elsevier GmbH. All rights reserved.
引用
收藏
页码：694 / 696
页数：3
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