Title :
Lensless acousto-optical convolver
Author :
Alippi, A. ; Palma, A. ; Palmieri, L. ; Socino, G. ; Verono, E.
Author_Institution :
CNR, Istituto di Acustica `O.M. Corbino¿, Roma, Italy
Abstract :
A lensless acousto-optical convolver has been realised with surface acoustic waves, which relies on a technique of polarisation discrimination detection of the diffracted light. A polariser may, then, filter the light signal directly in the Fresnel field, thus allowing realisation of a strictly compact device that retains properties of easy adjustment and simplicity.
Keywords :
acousto-optical devices; signal processing; surface acoustic wave devices; Fresnel field light signal filtering; SAW light diffraction; diffracted light; lensless acoustooptical convolver; polarisation discrimination detection;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19780353
