Abstract

A side-tunnel optical fiber is approximated by a rectangular-core waveguide, the polarization characteristics of which can be obtained by a simple perturbation analysis. It is shown that birefringence properties of a side-tunnel fiber match well those of the corresponding rectangular-core waveguide.

© 1986 Optical Society of America

Simple method for analyzing the birefringence of an elliptical-core fiber by an equivalent rectangular waveguide

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