Title :
Thin-film acousto-optic interaction in LiNbO3
Author :
White, J.M. ; Heidrich, P.F. ; Lean, E.G.
Author_Institution :
IBM Thomas J. Watson Research Center, Yorktown Heights, USA
Abstract :
100% Bragg diffraction of guided optical waves by surface acoustic waves in metal-diffused layers in LiNbO3 substrates has been observed. The predicted efficiency, which compares favourably with experimental measurement, is shown to arise mainly from the electro-optic contribution of the electric field associated with the yz acoustic surface waves instead of the clasto-optic contribution due to the strain or from the surface ripple components.
Keywords :
acoustic surface waves; acousto-optical effects; electro-optical effects; guided light propagation; light diffraction; lithium compounds; piezoelectric materials; thin films; Bragg diffraction; LiNbO3; acoustooptical effects; elastooptical effects; electrooptical effects; guided optical waves; surface acoustic waves;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19740405
