Highly compact asymmetric Mach-Zehnder device based on channel guides in a two-dimensional photonic crystal

被引：18

作者：

Camargo, Edilson A.

Chong, Harold M. H.

De La Rue, Richard M.

机构：

[1] Inst Aeronaut & Space, IAE, CTA, BR-12228904 Sao Paulo, Brazil

[2] Univ Glasgow, Dept Elect & Elect Engn, Optoelectron Res Ctr, Glasgow G12 8LT, Lanark, Scotland

来源：

APPLIED OPTICS | 2006年 / 45卷 / 25期

关键词：

D O I：

10.1364/AO.45.006507

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have designed and fabricated a 2D photonic crystal (PhC) asymmetric Mach-Zehnder (M-Z) device structure using W1 channel waveguides oriented along Gamma K directions in silicon-on-insulator material. The asymmetric structure was designed using a PhC lattice with different filling factors. The asymmetry is obtained as a difference of two periods in the physical path length (Delta L = 2a) between the arms, and it was sufficient to produce a pi phase shift in the region of operation around X = 1500 run. The asymmetric M-Z structure is more sensitive than a symmetric M-Z structure to changes in the refractive index and therefore becomes an interesting platform for switching and sensor devices. (c) 2006 Optical Society of America

引用

页码：6507 / 6510

页数：4

共 11 条

[1]

Camargo E. A., 2003, Proceedings of the SPIE - The International Society for Optical Engineering, V4944, P376, DOI 10.1117/12.470396

[2] 2D Photonic crystal thermo-optic switch based on AlGaAs/GaAs epitaxial structure [J].