Title :
Integrated optic matrix-vector multiplier using multi-frequency acousto-optic diffraction
Author :
Goto, N. ; Kanayama, Y. ; Miyazaki, Y.
Author_Institution :
Dept. of Inf. & Comput. Sci., Toyohashi Univ., of Technol., Japan
Abstract :
An integrated-optic numerical processor performing matrix-vector multiplication in analog representation is proposed. Parallel processing of a number of numerical products is performed in the same area of a substrate by means of multiple Bragg diffraction of multiwavelength optical signals due to multifrequency surface acoustic waves (SAWs). The wavelength interval of multiplexed optical signals can be 0.77 nm for an optical beam width of 3 mm and an acoustic frequency of 1 GHz. Preliminary demonstrations of matrix-vector multiplication are presented with a waveguide-type Ti:LiNbO3 acoustooptic deflector. An alternative processor using one optical wavelength is also described
Keywords :
acousto-optical devices; hybrid simulation; integrated optics; matrix algebra; optical deflectors; optical information processing; optical logic; 1 GHz; 3 mm; LiNbO3:Ti; acoustooptic deflector; integrated-optic numerical processor; matrix-vector multiplication; multifrequency surface acoustic waves; multiple Bragg diffraction; multiplexed optical signals; multiwavelength optical signals; Acoustic diffraction; Acoustic waves; Integrated optics; Optical diffraction; Optical surface waves; Optical waveguides; Parallel processing; Signal processing; Surface acoustic waves; Transmission line matrix methods;
Conference_Titel :
Ultrasonics Symposium, 1989. Proceedings., IEEE 1989
Conference_Location :
Montreal, Que.
DOI :
10.1109/ULTSYM.1989.67032
