A new broadband photonic crystal add drop filter

被引：15

作者：

Monifi, Faraz ^{[1
]}

Djavid, M. ^{[1
]}

Ghaffari, A. ^{[1
]}

Abrishamian, M.S. ^{[1
]}

机构：

[1] Department of Electrical Engineering, KN Toosi University of Technology, Tehran

来源：

Journal of Applied Sciences | 2008年 / 8卷 / 11期

关键词：

Add drop filter; FDTD; Integrated optics; Photonic crystal; Ring resonator;

D O I：

10.3923/jas.2008.2178.2182

中图分类号：

学科分类号：

摘要：

In this study, we present a photonic crystal Add-Drop Filter (ADF) design based on 3×3 ring resonators. The normalized transmission spectra for single-ring and dual-ring configurations have been investigated by using the two-dimensional Finite-Difference Time-Domain (FDTD) technique in a square lattice dielectric-rod photonic-crystal structure. In this study, firstly we investigate a single ring bend structure and we show that this structure can act as a broadband bend in third communication window. Then we suggest a new structure with two rings to develop a new ADF. This filter consists of an input and two outputs. Our FDTD simulation yields more than 90% efficiency over each output. We investigate parameters which affecting resonant frequency in photonic crystal add-drop filters. These parameters include dielectric constant of rods and the ring size as well as the radius of the coupling and scatterer rods. © 2008 Asian Network for Scientific Information.

引用

页码：2178 / 2182

页数：4

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