Photonic crystal directional coupler switch with small switching length and wide bandwidth

被引：80
作者：
Yamamoto, N [1 ]
Ogawa, T [1 ]
Komori, K [1 ]
机构：
[1] Natl Inst Adv Ind Sci & Technol, Photon Res Inst, Tsukuba, Ibaraki 3058568, Japan
来源：
OPTICS EXPRESS | 2006年 / 14卷 / 03期
关键词：
D O I：
10.1364/OE.14.001223
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A directional coupler switch structure capable of short switching length and wide bandwidth is proposed. The switching length and bandwidth have a trade-off relationship in conventional directional coupler switches. Dispersion curves that avoid this trade-off are derived, and a two-dimensional photonic crystal structure that achieves these dispersion curves is presented. Numerical calculations show that the switching length of the proposed structure is 7.1% of that for the conventional structure, while the bandwidth is 2.17 times larger. (c) 2006 Optical Society of America.
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收藏
页码：1223 / 1229
页数：7
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