Analysis of single-mode optical Y-junction by the bounded step and bend approximation

Author

Tsutsumi, Koji ; Imada, Yasumasa ; Hirai, Hiroshi ; Yuba, Yoshiharu

Author_Institution

Dept. of Electron., Kyoto Inst. of Technol., Japan

Volume

6

Issue

4

fYear

1988

fDate

4/1/1988 12:00:00 AM

Firstpage

590

Lastpage

600

Abstract

An approximate method for analyzing planar optical Y-junctions is presented. The junction structure is replaced by a discrete succession of bounded waveguide segments, and the presence of waveguide bends is assumed. Using this approximation, single-mode symmetrical Y-junctions operated as power dividers are investigated numerically. It is shown that strong mode conversion occurs between the guided and radiation modes of the local normal mode. A perturbation analysis shows that reflected fields are negligible. Reliable values of the transmitted power are obtained

Keywords

bending; numerical analysis; optical waveguides; bend approximation; bounded step; guided modes; junction structure; mode conversion; normal mode; perturbation analysis; power dividers; radiation modes; reflected fields; single-mode optical Y-junction; transmitted power; waveguide bends; Helium; Optical devices; Optical refraction; Optical variables control; Optical waveguide components; Optical waveguide theory; Optical waveguides; Power combiners; Power dividers; Waveguide junctions;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.4041

Filename

4041