Open AccessAnalysis of the multifilament core fiber using the effective index theory
Author(s) -
Guillaume Canat,
Ron Spittel,
Sylvia Jetschke,
Laurent Lombard,
P. Bourdon
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.004644
Subject(s) - core (optical fiber) , fiber , materials science , optics , finite element method , photonic crystal fiber , coupled mode theory , bending , optical fiber , graded index fiber , refractive index , composite material , structural engineering , fiber optic sensor , physics , optoelectronics , engineering
Multifilament core (MFC) fibers are a new type of microstructured fiber recently introduced. We investigate their properties using finite element modeling and show that the equivalent step index fiber based on moments theory does not provide similar properties. We propose an effective index theory based on the fundamental space filling mode which allows to predict the MFC properties using a semi-analytical modeling. Good resistance to bending is thus attributed to increased core effective index due to the high index filaments.