Slab-Modulated Sidewall Bragg Gratings in Silicon-on-Insulator Ridge Waveguides

Author

Jiang, Guomin ; Chen, Ruiyi ; Zhou, Qiang ; Yang, Jianyi ; Wang, Minghua ; Jiang, Xiaoqing

Author_Institution

Dept. of Inf. Sci. & Electron. Eng., Zhejiang Univ., Hangzhou, China

Volume

23

Issue

1

fYear

2011

Firstpage

6

Lastpage

8

Abstract

A slab-modulated sidewall Bragg grating realized by periodically structural corrugation in the sides of silicon slab is demonstrated on a silicon-on-insulator ridge waveguide. Based on this structure, narrow bandwidth can be accurately controlled by varying the distance between the slab grating region and the ridge with high fabrication tolerance. And low side lobes can also be conveniently achieved by changing the extent of sidewall grating teeth. Experimental results show that bandwidths of the example devices can be changed from 0.64 to 1.4 nm, which agree well with the simulated results.

Keywords

Bragg gratings; integrated optics; optical control; optical fabrication; optical modulation; optical waveguides; ridge waveguides; silicon-on-insulator; Si-SiO₂; SiO₂; fabrication tolerance; low side lobes; narrow bandwidth; periodically structural corrugation; sidewall grating teeth; silicon slab; silicon-on-insulator ridge waveguides; slab grating; slab-modulated sidewall Bragg gratings; Bandwidth; Bragg gratings; Fabrication; Gratings; Optical waveguides; Silicon; Slabs; Bragg scattering; gratings; ridge waveguide; silicon-on-insulator (SOI) technology;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2010.2089613

Filename

5608492