Stopband position and width in resonant grating waveguide structures

Author

Stenzel, Olaf ; Kaiser, Norbert

Author_Institution

Fraunhofer Inst. of Appl. Opt. & Precision Mech., Jena, Germany

fYear

2003

fDate

22-27 June 2003

Firstpage

701

Abstract

We derived approximation formulae that allow to analytically estimate film thickness and grating period necessary for a required stopband position. The derived formulae allow a straightforward and simple estimation of the film thickness for a resonant grating waveguide structures, the results have been confirmed by accurate rigorous coupled wave approximation (RCWA) calculations. We discuss the merit of stopband position and stopband width estimation, as well as the effects caused by dispersion and absorption of the high refractive index film material.

Keywords

diffraction gratings; light absorption; optical dispersion; optical films; optical waveguides; refractive index; thickness measurement; absorption effects; dispersion effects; film thickness estimation; grating period estimation; high refractive index film material; resonant grating waveguide structure; rigorous coupled wave approximation; stopband position; stopband width; Diffraction gratings; Interference; Optical films; Optical filters; Optical reflection; Optical refraction; Optical variables control; Optical waveguides; Refractive index; Resonance;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Europe, 2003. CLEO/Europe. 2003 Conference on

Print_ISBN

0-7803-7734-6

Type

conf

DOI

10.1109/CLEOE.2003.1313768

Filename

1313768