Polarization-independent waveguides in air holes photonic crystals and its slow light

被引：8
|
作者：
Fan, Qingbin [1 ]
Li, Chuanqi [1 ]
Liu, Wei [2 ]
Lu, Ye [1 ]
Zhang, Dongchuang [1 ]
机构：
[1] Guangxi Normal Univ, Dept Elect Engn, Lab Optoelect & Opt Commun, Guilin 541004, Peoples R China
[2] Zhengzhou Univ, Henan Key Lab Laser & Optoelect Informat Technol, Zhengzhou 450052, Henan, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2016年 / 380卷
关键词：
Photonic integrated circuits; Photonic crystal waveguides; Photonic crystals; EXISTENCE; GAP;
D O I：
10.1016/j.optcom.2016.06.017
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A line-defect waveguide in a triangular lattice photonic crystal (PC) made of air holes in dielectric is demonstrated to support transverse magnetic (TM) as well as transverse electric (TE) guided modes simultaneously. A group of suitable geometric parameters were found to make the guided bands overlapped by means of Genetic Algorithm. The optimized waveguide realizes a polarization-independent single-mode transmission and wide operating bandwidth which reaches 0.012 Delta omega a/(2 pi c). Moreover, the guided modes are shown to exhibit a wide-bandwidth slow light and an extremely low group velocity dispersion in most frequency range. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：227 / 232
页数：6
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