Abstract

The variational-moment method is used to demonstrate the calculation of propagation constants for optical waveguides with arbitrary index profiles. For simplicity, and for comparison with exact numerical solutions, only a few one-dimensional structures are considered. Examples include symmetric and nonsymmetric waveguides. Good agreement with the exact numerical solutions is obtained in most cases, even for the nonsymmetric waveguides.

© 1994 Optical Society of America

Use of a variational moment method in calculating propagation constants for waveguides with an arbitrary index profile

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