Title :
Measurement of intermodal delay in a dual-mode optical fibre
Author_Institution :
University of Strathclyde, Department of Electronic & Electrical Engineering, Glasgow, UK
Abstract :
A novel measurement technique for intermodal dispersion between the LP01 and LP11 modes of a dual-mode optical fibre is described. A frequency-modulated optical source produces a beat frequency, proportional to intermodal delay, by interference of the two modes at the fibre output. Experimental results agree with theoretical predictions.
Keywords :
light interferometry; optical fibres; optical testing; optical variables measurement; LP01 mode; LP11 modes; beat frequency; dual-mode optical fibre; frequency-modulated optical source; intermodal delay; intermodal dispersion; measurement technique; mode interference;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850732
