Inhomogeneous dielectric waveguides: a uniform asymptotic theory
- 1 January 1980
- journal article
- Published by IOP Publishing in Journal of Physics A: General Physics
- Vol. 13 (1), 347-360
- https://doi.org/10.1088/0305-4470/13/1/034
Abstract
The application of the uniform theory of differential equations with two turning-points is considered in relation to the modal eigenvalue problem for an inhomogeneous dielectric waveguide (optical fibre). Expressions are deduced for the leading asymptotic order term for the eigenvalue for modes not close to cut-off.Keywords
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