Supermode analysis of fibre transmission

Author

Besley, J.A. ; Love, J.D.

Author_Institution

Opt. Sci. Centre, Australian Nat. Univ., Canberra, ACT, Australia

Volume

144

Issue

6

fYear

1997

fDate

12/1/1997 12:00:00 AM

Firstpage

411

Lastpage

419

Abstract

An analysis is presented of propagation along practical, single-mode matched-cladding and depressed-cladding slab waveguides and fibres using the bound modes of the entire core-cladding-coating-air cross-section, instead of the usual bound-radiation-mode model of a finite core and unbounded cladding. The model readily quantifies the spatial transient in terms of modal absorption and scattering in the coating, and also displays leaky-mode behaviour, as well as the characteristic transmission dips associated with the fundamental mode beyond its cutoff wavelength in a depressed-cladding fibre

Keywords

optical fibre cladding; optical fibre theory; optical losses; bound modes; bound-radiation-mode model; characteristic transmission dips; core-cladding-coating-air cross-section; cutoff wavelength; depressed-cladding fibre; depressed-cladding fibres; depressed-cladding slab waveguides; fibre transmission; fundamental mode; leaky-mode behaviour; matched-cladding slab waveguides; modal absorption; optical fibre theory; single-mode matched-cladding fibres; slab waveguides; supermode analysis; unbounded cladding;

fLanguage

English

Journal_Title

Optoelectronics, IEE Proceedings -

Publisher

iet

ISSN

1350-2433

Type

jour

DOI

10.1049/ip-opt:19971381

Filename

656376