Title :
Acousto-optic diffraction of optical guided waves in crystal quartz
Author :
Pitt, C.W. ; Skinner, J.D. ; Townsend, Paul D.
Author_Institution :
University College London, Department of Electronic & Electrical Engineering, London, UK
Abstract :
A waveguide supporting a single propagating mode has been fabricated by ion beam modification of X-cut crystal quartz. The gas ion implantation reduced the index of a subsurface layer, and guiding occurred in the surface region. The acoustic properties of the quartz are little affected. Bragg diffraction of guided light by surface acoustic waves was observed with efficiencies of approximately 0.25% per milliwatt acoustic power.
Keywords :
acousto-optical effects; light diffraction; optical waveguides; quartz; surface acoustic waves; Bragg diffraction; X-cut crystal quartz; gas ion implantation; ion beam modification; propagating mode; subsurface layer; surface acoustic waves;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840003
