Numerical analysis of curvature loss in optical waveguides by the finite-element method

Author

Yamamoto, Toshio ; Koshiba, Masanori

Author_Institution

Dept. of Basic Res., Olympus Opt. Co. Ltd., Tokyo, Japan

Volume

11

Issue

10

fYear

1993

fDate

10/1/1993 12:00:00 AM

Firstpage

1579

Lastpage

1583

Abstract

A numerical approach based on the finite-element method is described for the analysis of curved optical waveguides. Curvature loss is evaluated simultaneously with the propagation constant and the field distribution. Both TE-like and TM-like modes are systematically formulated. Numerical examples on the propagation characteristics of curved rib waveguides are given. The results for curvature loss of curved rib waveguides agree well with those obtained by experiments and the method of lines

Keywords

finite element analysis; integrated optics; optical losses; optical waveguide theory; TE-like a; TM-like modes; curvature loss; curved optical waveguides; curved rib waveguides; field distribution; finite-element method; method of lines; numerical analysis; numerical approach; optical waveguides; propagation characteristics; propagation constant; Dielectrics; Finite element methods; Integrated optics; Numerical analysis; Optical losses; Optical propagation; Optical resonators; Optical waveguides; Propagation constant; Rectangular waveguides;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.249899

Filename

249899