D. Dolfi et al., OPTICAL ARCHITECTURES FOR PROGRAMMABLE FILTERING AND CORRELATION OF MICROWAVE SIGNALS, IEEE transactions on microwave theory and techniques, 45(8), 1997, pp. 1467-1472
New optoelectronic architectures are presented, based on parallel dela
y lines, performing programmable filtering of microwave signals, Accor
ding to current performances of optoelectronic components, they can pr
ocess optically carried microwave signals over frequency bandwidths as
large as 20 GHz, with a time-frequency product up to 10(3), The opera
ting principle of these structures is detailed and followed by the pre
liminary experimental demonstration at 1.3 GHz of a 53-dB rejection fi
lter.