Title :
Modal distribution of backscattered light in a step-index multimode fibre
Author_Institution :
US Air Force, Rome Air Development Center, Bedford, USA
Abstract :
The modal distribution of backscattered light has been measured for a low mode-mixing, step-index fibre. The modal distribution of the Rayleigh backscatter is shown to depend on that of the exciting pulse. The possibility of substantial errors arising in reflectometry measurements of splice and connector losses is demonstrated where the receiver is mode-selective.
Keywords :
backscatter; light scattering; losses; optical fibres; time-domain reflectometry; Rayleigh backscatter; backscattered light; connector losses; modal distribution; optical time-domain reflectometry; reflectometry measurements; step-index multimode fibre;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19810399
