Fundamental error of recent coupled mode formulations

Snyder, A. W.; Ankiewicz, A.; Altintas, A.

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Fundamental error of recent coupled mode formulations

Date

1987

Authors

Snyder, A. W.

Ankiewicz, A.

Altintas, A.

Abstract

We demonstrate that the Hardy-Streifer coupled mode formulation and similar forms, including those of Haus et at. and Chuang, are incorrect unless restricted to TE modes in planar geometry. The error becomes arbitrarily large with increasing core refractive index, while the error in th conventional (first-order) theory approaches zero in the limit of weak coupling.