Title :
Effect of dip in the referctive index on the cut-off frequency of a single-mode fibre
Author :
Gambling, W.A. ; Payne, David N. ; Matsumura, Hiroshi
Author_Institution :
University of Southampton, Department of Electronics, Southampton, UK
Abstract :
The normalised frequency for single-mode cut-off in an optical fibre has been calculated as a function of the dip in the refractive index at the centre of the core. For a particular class of profiles, dip width up to 40% have a negligible effect on the propagation characteristics.
Keywords :
optical fibres; refractive index; cut off frequency; dip effect; dip widths; optical fibre; propagation characteristics; refractive index; single mode fibre;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19770128
