Title :
Coupling efficiency in selective excitation of tubular modes into graded-index multimode fibres
Author :
Jean, F. ; Facq, P. ; de Fornel, F.
Author_Institution :
UER des Sciences, Laboratoire de Communications Optiques et Microondes, CNRS UA 356, Limoges, France
Abstract :
High-purity selective-mode launching being feasible in graded-index profile multimode fibres, we evaluate in a closed form the effects of unavoidable launching imperfections such as lateral offset, angular misalignment and scale discordance of the launched beam.
Keywords :
gradient index optics; optical fibres; optical waveguide theory; angular misalignments; graded-index multimode fibres; lateral offset; launching imperfections; mode coupling efficiency; scale discordance; selective excitation; tubular modes;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860008
