Abstract

An exact analysis using the Green’s function formulation of the problem of scattering from a localized inhomogeneity inside a cladded fiber optical waveguide is carried out. The analysis yields radiation loss that agrees well with that evaluated from the infinite-medium approximation. However, the spatial distribution of the radiation loss, i.e., the radiation pattern, differs markedly from that predicted by the infinite-medium approximation. The same analysis also permits the study of mode conversion due to scattering to be reported separately.

© 1976 Optical Society of America

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