Title :
Experimental investigation of variation of backscattered power level with numerical aperture in multimode optical fibres
Author :
Eriksrud, M. ; Mickelson, Alan R.
Author_Institution :
Norwegian Institute of Technology, Electronics Research Laboratory, Trondheim, Norway
Abstract :
Experiments have been performed to determine how the backscattered power level varies with numerical aperture. It is found that graded-index fibres are more sensitive to such variations than step-index fibres. By taking into account the dependence of the Rayleigh scattering coefficient on numerical aperture, the experimental results agree well with theory.
Keywords :
Rayleigh scattering; backscatter; optical fibres; Rayleigh scattering coefficient; backscattered power level; graded-index fibres; multimode optical fibres; numerical aperture; step-index fibres;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19820087
