Title :
Fast method for calculating cutoff frequencies in single-mode fibres with arbitrary index profiles
Author_Institution :
University of New South Wales, School of Nuclear Engineering, Kensington, Australia
Abstract :
A Cheby¿shev power-series approach is used for cutoff frequencies of the second mode in fibres with arbitrary refractive-index profiles. The method is fast because only a small number of terms is required to give high accuracy. A feature of this approach is that measured profiles can be used directly without being first converted to any specific forms. Examples are given as illustrations.
Keywords :
Chebyshev approximation; optical fibres; refractive index; Chebyshev power-series approach; arbitrary index profiles; cutoff frequency calculation; single-mode fibres;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19820716
