Determination of bend mode characteristics in dielectric waveguides

Author

Melloni, Andrea ; Carniel, Federico ; Costa, Raffaella ; Martinelli, Mario

Author_Institution

CoreCom, Milan, Italy

Volume

19

Issue

4

fYear

2001

fDate

4/1/2001 12:00:00 AM

Firstpage

571

Lastpage

577

Abstract

A new and effective method for the electromagnetic analysis of generic bent dielectric waveguides is presented. The method is based on the expansion of the bend mode in modes of the straight waveguide and permits determination of the shape and the phase constant of the fundamental mode of the bend waveguide with great accuracy at a very low computational cost. Simple analytical expressions of the phase constant, coupling losses, and bending-induced birefringence are derived under very general conditions. The proposed method is useful for the design and optimization of each bent section of integrated optics components

Keywords

bending; birefringence; integrated optics; optical waveguide theory; optical waveguides; optimisation; waveguide discontinuities; bend mode characteristics; bending-induced birefringence; coupling losses; dielectric waveguides; electromagnetic analysis; fundamental mode; generic bent dielectric waveguides; great accuracy; integrated optics component bent section design; optimization; phase constant; straight waveguide; very low computational cost; Birefringence; Computational efficiency; Design optimization; Dielectrics; Electromagnetic analysis; Electromagnetic waveguides; Optical design; Optical losses; Optical waveguides; Shape;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.920856

Filename

920856