Mode-field radius of noncircular field single-mode fibre: new definition and application to calculation of splice loss and waveguide dispersion

12 May 1988

journal article
Published by Institution of Engineering and Technology (IET) in Electronics Letters

Vol. 24 (10) , 646-647
https://doi.org/10.1049/el:19880438

Abstract

A new definition of the mode-field radius (MFR) of a noncircular field single-mode fibre (NCSMF) is proposed, based on the quadratic moment of far-field distribution. Relations between MFR and splice loss, propagation constant and waveguide dispersion of the NCSMF are derived, which will reduce to known results under cases of circular and Gaussian-elliptic field distribution.

Keywords

FAR-FIELD DISTRIBUTION
NONCIRCULAR FIELD SINGLE-MODE FIBRE
MODE-FIELD RADIUS
WAVEGUIDE DISPERSION
CIRCULAR FIELD DISTRIBUTION
PROPAGATION CONSTANT
QUADRATIC MOMENT
SPLICE LOSS
GAUSSIAN-ELLIPTIC FIELD DISTRIBUTION

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