Enhanced ESI for prediction of waveguide dispersion in single-mode optical fibres
Abstract
We provide an enhanced equivalent step index (EESI) approximation for the accurate prediction of waveguide dispersion on monomode optical fibres. Using a quadratic ‘enhancement function’ the waveguide dispersion even for the triangular core profile fibre can be predicted to be between 92 and 100% of its exact value in the single-mode region.

