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

Volume

45

Issue

8

fYear

1997

fDate

8/1/1997 12:00:00 AM

Firstpage

1467

Lastpage

1472

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;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.618456

Filename

618456