Optical delay lines using coupled slab waveguides and ring resonator with a negative refractive index core

被引：2

作者：

Golmohammadi, Saeed ^{[1
]}

Asghari-Sooreh, Amin ^{[2
]}

Abedi, Kambiz ^{[3
]}

机构：

[1] Univ Tabriz, Sch Engn Emerging Technol, Tabriz 5166614761, Iran

[2] Islamic Azad Univ, Dept Engn, Ahar Branch, Tehran, Iran

[3] Shahid Beheshti Univ, Fac Elect & Comp Engn, Dept Elect Engn, Tehran, Iran

来源：

OPTIK | 2014年 / 125卷 / 19期

关键词：

Slab waveguides; Ring resonator; Metamaterial; Negative refractive index; Group delay; LIGHT; SLOW;

D O I：

10.1016/j.ijleo.2014.06.030

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Total delay time of a structure composed of a slab waveguide coupled with a ring resonator where negative refractive index material is replaced in the core of the structure is investigated in this work. In this paper, a two-port ring resonator (TPRR) which is made of a core with negative refractive index has been used to generate a time delay for a Gaussian-shaped pulse with 1 GHz bandwidth. It is shown that the creation of the ring how causes more n(g) of a straight waveguide and results are compared with positive refractive index core TPRR. We have used metamaterial to make an n < 0 media and have used two cascaded metamaterial rings to increase the bandwidth. (C) 2014 Elsevier GmbH. All rights reserved.

引用

页码：5723 / 5726

页数：4

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