Decoupling of Multiple Coupled Photonic Crystal Waveguides

被引：5
|
作者：
Yu, Tianbao [1 ]
Liu, Nianhua. [1 ]
Huang, Jiehui [1 ]
Yang, Jianyi [2 ]
Jiang, Xiaoqing [2 ]
机构：
[1] Nanchang Univ, Dept Phys, Nanchang 330031, Peoples R China
[2] Zhejiang Univ, Dept Informat Sci & Elect Engn, Hangzhou 310027, Zhejiang, Peoples R China
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2009年 / 21卷 / 07期
关键词：
Decoupling; integrated photonics; photonic crystals (PhCs); waveguide couplers;
D O I：
10.1109/LPT.2009.2013131
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Decoupling of multiple coupled photonic crystal waveguides (M-CPCWs) is investigated based on the self-imaging principle. We choose the three-, four-, and eight-CPCWs as typical structures to discuss the general characteristics of the M-CPCWs. It is found that around the frequency where the multiple guided modes are almost degenerate, the power transfer in the M-CPCWs is eliminated for any entrance. The frequency region for decoupling is insensitive to the number of coupled waveguides with the extinction ratios higher than -15 dB. The decoupling of the M-CPCWs exhibit many advantages and may have practical applications in photonic integrated circuits.
引用
收藏
页码：423 / 425
页数：3
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