Title :
Optical architectures for programmable filtering and correlation of microwave signals
Author :
Dolfi, Daniel ; Tabourel, Jérôme ; Durand, Olivier ; Laude, Vincent ; Huignard, Jean-Pierre ; Chazelas, J.
Author_Institution :
Lab. Central de Recherches, Thomson-CSF, Orsay, France
fDate :
8/1/1997 12:00:00 AM
Abstract :
New optoelectronic architectures are presented, based on parallel delay lines, performing programmable filtering of microwave signals. According to current performances of optoelectronic components, they can process optically carried microwave signals over frequency bandwidths as large as 20 GHz, with a time-frequency product up to 103. The operating principle of these structures is detailed and followed by the preliminary experimental demonstration at 1.3 GHz of a 53-dB rejection filter
Keywords :
electro-optical filters; liquid crystal devices; optical correlation; optical delay lines; optical information processing; programmable filters; spatial filters; spatial light modulators; 1.3 GHz; 20 GHz; correlation; frequency bandwidths; liquid crystal spatial light modulator; microwave signals; optoelectronic architectures; parallel delay lines; programmable filtering; rejection filter; time-frequency product; Bandwidth; Delay effects; Delay lines; Filtering; Frequency; Microwave filters; Optical filters; Optical modulation; Signal processing; Transversal filters;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
