Title :
Optical coupling between thin films and circular fibres
Author :
Laybourn, P.J.R. ; Millar, C.A. ; Stewart, George ; Wilkinson, C.D.W.
Author_Institution :
University of Glasgow, Department of Electronics & Electrical Engineering, Glasgow, UK
Abstract :
Techniques are proposed for launching light into circular glass-fibre waveguides from prism couplers and thin-film optical waveguides. To make the evanescent field of core modes available, the fibre cladding is etched away, or its refractive index modified by ion exchange.
Keywords :
fibre optics; guided light propagation; integrated optics; optical waveguides; waveguide couplers; circular glass fibre waveguides; core modes; evanescent field; fibre cladding; ion exchange; optical coupling; prism couplers; refractive index; thin film optical waveguides;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19750002
