Title :
Modal analysis of annular couplers
Author :
Day, Stephen ; Bricheno, T. ; Fielding, A.
Author_Institution :
STC Technol. Ltd., Harlow, UK
Abstract :
A model is presented for calculating the coupling characteristics of annular couplers, using an effective index technique framed in polar co-ordinates. Experimental and theoretical results are compared. The model has also been used to investigate the coupling characteristics of a fused annular array of fibres.
Keywords :
optical couplers; optical fibres; optical waveguide theory; annular couplers; coupling characteristics; effective index technique; fibres; fused annular array; modal analysis; model; polar co-ordinates;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19910071
