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

Shu Yuan Lü, Jian Lin Zhao, Dong Zhang

科研成果: 期刊稿件文章同行评审

5 引用 (Scopus)

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.

源语言英语
页(从-至)481-485
页数5
期刊Science China: Physics, Mechanics and Astronomy
53
3
DOI
出版状态已出版 - 3月 2010

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