Superprism phenomena in planar photonic crystals

Author

Wu, Lijun ; Mazilu, Michael ; Karle, Tim ; Krauss, Thomas F.

Author_Institution

Sch. of Phys. & Astron., Univ. of St. Andrews, Fife, UK

Volume

38

Issue

7

fYear

2002

fDate

7/1/2002 12:00:00 AM

Firstpage

915

Lastpage

918

Abstract

We utilize the anomalous dispersion of planar photonic crystals near the dielectric band edge to control the wavelength-dependent propagation of light. We typically observe an angular swing of up to 10° as the input wavelength is changed from 1290 nm to 1310 nm, which signifies an angular dispersion of 0.5 degree/nm. Such a strong angular dispersion is of the order required for wavelength-division multiplexing systems. This is the first demonstration of the "superprism" effect in a planar configuration with a small lattice

Keywords

optical dispersion; optical planar waveguides; optical prisms; photonic band gap; wavelength division multiplexing; 1290 to 1310 nm; GaAs; SiO₂-Ga_0.1Al_0.9As; angular dispersion; angular swing; anomalous dispersion; dielectric band edge; input wavelength; integrated optics; planar configuration; planar photonic crystals; small lattice; superprism phenomena; wavelength-dependent light propagation; wavelength-division multiplexing systems; Arrayed waveguide gratings; Dielectrics; Dispersion; Lattices; Optical device fabrication; Optical propagation; Optical refraction; Optical waveguides; Photonic crystals; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.2002.1017607

Filename

1017607