Modal field analysis of circularly bent single-mode fibers

Author

Wassmann, Frank

Author_Institution

Sch. of Electr. Eng., New South Wales Univ., Kensington, NSW, Australia

Volume

17

Issue

5

fYear

1999

fDate

5/1/1999 12:00:00 AM

Firstpage

957

Lastpage

968

Abstract

By solving the scalar wave equation for modes of a circularly bent homogeneous single-mode fiber, using the conformal mapping and variational methods, for which various Gaussian-based trial fields are used to represent the fundamental HE₁₁ mode, and through quantitative and qualitative analysis, the transverse field profile of the fundamental mode on such waveguiding structures is investigated. The results obtained are compared to those obtained numerically and in the existing literature. The combined methods used here present certain advantages over a number of existing methods insofar as it provides more accurate results than those obtained previously, especially those obtained using the simple Gaussian approximation

Keywords

approximation theory; modal analysis; optical fibre theory; variational techniques; waveguide discontinuities; Gaussian approximation; Gaussian-based trial fields; circularly bent homogeneous single-mode fiber; circularly bent single-mode fibers; conformal mapping; fundamental HE₁₁ mode; fundamental mode; modal field analysis; scalar wave equation; transverse field profile; variational methods; waveguiding structures; Australia; Conformal mapping; Demodulation; Demultiplexing; Gaussian approximation; Gaussian processes; Optical fibers; Partial differential equations; Perturbation methods; Refractive index;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.762917

Filename

762917