Effects on the Slow Light Properties of 2D Photonic Crystal  Waveguide with the Change of the Structure Parameters

doi:10.13190/jbupt.201005.7.luh

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2010, Vol. 33 ›› Issue (5): 7-10.doi: 10.13190/jbupt.201005.7.luh

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Effects on the Slow Light Properties of 2D Photonic Crystal Waveguide with the Change of the Structure Parameters

Received:2010-01-05 Revised:2010-01-06 Online:2010-08-28 Published:2010-06-15

Abstract

Abstract:

Effects on the slow light properties of the photonic crystal linedefect waveguide are researched for designing photonic crystal structure with excellent slow light properties. Through changing the position and the size of the defected rods, the frequency and group velocity of the guided mode and the group velocity dispersion are analyzed with planewave expansion (PWE) method. Analysis indicates that the group velocity of the slow light is mainly affected by the radii and dielectric constant of the defected rods, and the group velocity dispersion is decided by the change of the defected rods’ location. The photonic crystal structures with excellent slow light properties can be achieved through designing the waveguide based on the conclusion.

Key words: photonic crystal, linedefect waveguide, guided mode, slow light, group velocity dispersion

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Effects on the Slow Light Properties of 2D Photonic Crystal Waveguide with the Change of the Structure Parameters

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