Title :
Spatial correlation of field intensity in incoherently illuminated multimode fibres
Author :
Bianciardi, E. ; Rizzoli, Vittorio ; Someda, Carlo G
Author_Institution :
UniversitÃ\xa0 di Bologna, Istituto di Elettronica, Bologna, Italy
Abstract :
Numerical results show that in several types of multimode fibre (step index, Selfoc, ring shaped) a spatial ripple is present in the superposition of equally excited guided mode power densities. An analytical discussion of field correlation properties explains why the ripple spatial frequency is proportional to V, as has been observed experimentally.
Keywords :
optical fibres; field correlation; field intensity; incoherently illuminated multimode fibres; spatial ripple; superposition of equally excited guided mode power densities;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19770019
