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Journal of Lightwave Technology,
vol. 12, pp. 396-410, 1994;
Erratum, vol. 12, p. 1510, 1994
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An Electromagnetic Theory of Dielectric
Waveguides with Multiple Embedded Cylinders
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K. M. Lo, R. C. McPhedran,
I. M. Bassett, and G. W. Milton
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Abstract:
We consider a dielectric waveguide or optical fiber
having a real isotropic ambient refractive index. In addition, several
isotropic and uniform embedded cylindrical regions of differing refractive
index are considered. The radii, refractive indexes, and positions of the
cylindrical subregions are arbitrary. We establish a rigorous method of
determining the fields and propagation constants for the vector
electromagnetic modes supported by this structure. We verify
the accuracy of the method by comparing its results with those
of other authors in particular cases, and exhibit direct
demonstrations of convergence.