Single-mode optical fibers using Pade approximants

Author

Flumara, V. ; Galdi, Vincenzo ; Pierro, Vincenzo ; Pinto, Innocenzo M.

Author_Institution

Dipt. di Ingegneria dell´´Inf. e Ingegneria Elettrica, Salerno Univ., Italy

Volume

8

Issue

9

fYear

1998

fDate

9/1/1998 12:00:00 AM

Firstpage

305

Lastpage

307

Abstract

We propose a new, fast, and accurate numerical technique for analyzing single-mode optical fibers with arbitrary (transverse) refractive index profile. The method is based upon a Pade (rational) approximation of the spectral domain Green´s function of the fiber, obtained by solving a hierarchy of static problems. The sought eigenfrequency and modal field are accordingly estimated by computing, respectively, the dominant pole and the related residual of the rational approximant. Numerical simulations and comparison with known analytical results indicate that the proposed method is highly accurate, reliable, and computationally affordable

Keywords

Green´s function methods; approximation theory; eigenvalues and eigenfunctions; optical fibre theory; Pade approximants; arbitrary refractive index profile; dominant pole; eigenfrequency; modal field; numerical technique; rational approximation; single-mode optical fibers; spectral domain Green function; Eigenvalues and eigenfunctions; Failure analysis; Frequency; Helium; Numerical analysis; Numerical simulation; Optical fiber communication; Optical fiber dispersion; Optical fibers; Refractive index;

fLanguage

English

Journal_Title

Microwave and Guided Wave Letters, IEEE

Publisher

ieee

ISSN

1051-8207

Type

jour

DOI

10.1109/75.720463

Filename

720463