Title :
Profile dispersion in multimode fibres: measurement and analysis
Author :
Gloge, D. ; Kaminow, I.P. ; Presby, H.M.
Author_Institution :
Bell Laboratories, Crawford Hill Laboratory, Holmdel, USA
Abstract :
An electronically scanned interference microscope has been used to measure the refractive-index profile and its dispersion in optical fibres. From these measurements, we find that the power-law profile that best equalises modal delays in GeO2-S1O2 fibres should have an exponent that varies between 1.9 and 2.5 in the wavelength range from 0.5 to 1.1 ¿m and is close to 2 at 0.9 ¿m.
Keywords :
fibre optics; optical dispersion; optical waveguides; refractive index; GeO2-SiO2 fibres; dispersion; multimode fibres; power law profile; refractive index profile;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19750360
