Analysis of abrupt bent waveguides by the beam propagation method and the conformal mapping method

Author

Fan, Ping-Lin ; Wu, Mount-Learn ; Lee, Ching-Ting

Author_Institution

Inst. of Opt. Sci., Nat. Central Univ., Chung-Li, Taiwan

Volume

15

Issue

6

fYear

1997

fDate

6/1/1997 12:00:00 AM

Firstpage

1026

Lastpage

1031

Abstract

In this study, we propose a simple and applicable approach to analyze the large angle (larger than 100) abrupt bent waveguides. By using the conformal mapping technique, the abrupt bent waveguide is transformed into an equivalent straight one which the conventional (paraxial) beam propagation method (BPM) can be applied to analyze it directly. The field distribution in a 20° microprism type abrupt bent waveguide is also demonstrated by our method

Keywords

bending; integrated optics; optical losses; optical prisms; optical waveguide theory; refractive index; abrupt bent waveguide; abrupt bent waveguides; beam propagation method; conformal mapping method; conformal mapping technique; equivalent straight waveguides; field distribution; microprism type abrupt bent waveguide; paraxial beam propagation; Conformal mapping; Integrated optics; Laplace equations; Optical design; Optical losses; Optical propagation; Optical waveguide theory; Optical waveguides; Refractive index; Waveguide transitions;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.588677

Filename

588677