Title :
Analysis of approximations for the mode dispersion in monomode fibres
Author_Institution :
Australian National University, Department of Applied Mathematics, Institute of Advanced Studies, Canberra, Australia
Abstract :
A number of recent papers have discussed the mode dispersion in step-index, monomode fibres using formulae based on accurate approximations for the modal propagation constant. It is shown here that, since dispersion depends on the first and second derivatives of the propagation constant, the use of such formulae may often be invalid and that a different type of approximation may be more useful
Keywords :
optical dispersion; optical fibres; optical waveguide theory; fibre optics; modal propagation constant; mode dispersion; monomode fibres; step index;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19790424
