Title :
Zero photonic band-gap structure in Si photonic-wire Bragg-grating
Author :
Kita, Tomohiro ; Yamada, Hirohito
Author_Institution :
Dept. of Electr. & Commun. Eng., Tohoku Univ., Sendai, Japan
Abstract :
We have systematically studied Bragg-grating filters in Si photonic-wire waveguides. We found an abnormal localized optical mode on the numerical calculations and verified it on the experimental measurements. This phenomenon originates from high index-contrast between the waveguide materials. Zero photonic band-gap structure was experimentally realized at transition structure of abnormal localized optical mode in 1-D photonic crystal.
Keywords :
Bragg gratings; elemental semiconductors; numerical analysis; optical filters; optical waveguides; photonic band gap; photonic crystals; silicon; 1D photonic crystal; Bragg-grating filters; Si; abnormal localized optical mode; high index-contrast; photonic-wire waveguides; transition structure; zero photonic band-gap structure; Indexes; Optical device fabrication; Optical filters; Optical waveguides; Photonic band gap; Photonics; Silicon;
Conference_Titel :
Group IV Photonics (GFP), 2011 8th IEEE International Conference on
Conference_Location :
London
Print_ISBN :
978-1-4244-8338-9
DOI :
10.1109/GROUP4.2011.6053740
