Design and analysis of a wideband photonic crystal waveguide with low group-velocity and low dispersion

作     者：Lü ShuYuan, ZHAO JianLin & ZHANG Dong Institute of Optical Information Science and Technology, Shanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi’an 710072, China 

作者机构：Institute of Optical Information Science and Technology Shanxi Key Laboratory of Optical Information Technology School of Science Northwestern Polytechnical University Xi’an China 

出 版 物：《Science China(Physics,Mechanics & Astronomy)》 (中国科学：物理学、力学、天文学（英文版）)

年 卷 期：2010年第53卷第10期

页      码：481-485页

摘      要：The slow light propagation in a line waveguide in the two-dimensional triangular photonic crystal has been numerically studied, based on which a wideband photonic crystal waveguide with low group-velocity and low dispersion is proposed. The numerical simulation analysis shows that it is possible to maximize the group index and minimize the group-velocity dispersion in wide bandwidth by increasing the radius of the basic air hole and changing the position of the first two rows of air holes in photonic crystal waveguides. Such a photonic crystal waveguide exhibits low group velocity and low group-velocity dispersion over a broad wavelength range. A larger group index-bandwidth product is achieved in this type of waveguide structure. The numerically computed results present the normalized bandwidth as 0.32%, 0.48% and 0.642% corresponding to the group index of 85, 58 and 45, respectively.

主 题 词：photonic crystal waveguide slow light group-velocity group-velocity dispersion group index 

学科分类：070207[070207] 07[理学] 0702[理学-物理学类] 

核心收录：

D　O　I：10.1007/s11433-009-0285-9

馆 藏 号：203331103...