Periodic segmented waveguide analysis by using the 2D finite element method

Author

Rubio-Mercedes, C.E. ; Lima, Ivan T., Jr. ; Hernández-Figueroa, H.E. ; Rodríguez-Esquerre, V.F.

Author_Institution

Math. & Eng. Phys. Courses, Univ. of Mato Grosso do Sul-UEMS, Dourados, Brazil

fYear

2011

fDate

Oct. 29 2011-Nov. 1 2011

Firstpage

876

Lastpage

880

Abstract

A numerical analysis of periodic segmented waveguides (PSWs) using the well known technique of two dimensional finite element method (2D-FEM) in the frequency domain is presented. Unlike photonic crystal waveguides (PCWs), light confinement in a PSW is due to total internal reflection as in a continuous waveguide (CWG). Moreover, the dispersion relation of the guided modes in PSW is strongly influenced by the dielectric periodicity along the waveguide. We calculate the mode profile of the PSW in a region far away from the band gap and compare with the mode profile of their equivalent CWG with an averaged refractive index contrast (Δn_eq).

Keywords

finite element analysis; photonic crystals; waveguides; 2D finite element method; 2D-FEM; continuous waveguide; numerical analysis; periodic segmented waveguide analysis; periodic segmented waveguides; photonic crystal waveguides; refractive index; total internal reflection; two dimensional finite element method; Finite element methods; Gratings; Optical waveguides; Refractive index; Silicon; Steady-state; Wires; Segmented waveguides; continuum waveguide; equivalent index; finite element; mode profile;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave & Optoelectronics Conference (IMOC), 2011 SBMO/IEEE MTT-S International

Conference_Location

Natal

ISSN

Pending

Print_ISBN

978-1-4577-1662-1

Type

conf

DOI

10.1109/IMOC.2011.6169297

Filename

6169297