Title :
A 1023-bit acousto-optic correlator for direct sequence spread spectrum applications
Author :
Bazzi, O. ; Torguet, R. ; Rouvaen, J.M. ; Bruneel, C.
Author_Institution :
Lab. d´´Opto-Acousto-Electron., Valenciennes Univ., France
Abstract :
A compact architecture for a real-time signal compressing processor based on the acoustooptic interaction is presented. The processor is designed in a single paratellurite acoustooptic Bragg cell with an access time of 40 μs. This yields a 1023-point resolution for a 25 MHz bandwidth. The interaction geometry, processing theory, and experimental results are reported
Keywords :
acousto-optical devices; optical correlation; spread spectrum communication; 25 MHz; 40 mus; TeO2; acoustooptic interaction; interaction geometry; processing theory; real-time signal compressing processor; single paratellurite acoustooptic Bragg cell; Acoustic beams; Bandwidth; Correlators; Geometrical optics; Laser beams; Optical mixing; Optical propagation; Photoelasticity; Signal processing; Spread spectrum communication;
Conference_Titel :
Ultrasonics Symposium, 1991. Proceedings., IEEE 1991
Conference_Location :
Orlando, FL
DOI :
10.1109/ULTSYM.1991.234227
