Title :
Off-axis launching into a fibre-optical waveguide
Author :
Stern, J.R. ; Dyott, R.B.
Author_Institution :
Post Office, Research Department, London, UK
Abstract :
The launching efficiency is calculated for the HE11 mode in an optical-fibre waveguide excited by an off-axis Gaussian laser beam. The dependence of the launching efficiency on small displacements of the fibre is discussed, and possible methods of easing the problem of positional alignment are suggested. Some recent experimental work is described.
Keywords :
fibre optics; guided electromagnetic wave propagation; optical waveguides; Gaussian laser beam; HE11 mode; fibre optical waveguide; off axis launching efficiency; positional alignment;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19710036
