Title :
Photonic signal processing of microwave signals using an active-fiber Bragg-grating-pair structure
Author :
Hunter, David B. ; Minasian, Robert A.
Author_Institution :
Dept. of Electr. Eng., Sydney Univ., NSW, Australia
fDate :
8/1/1997 12:00:00 AM
Abstract :
A new active photonic signal processor which achieves a high-Q microwave bandpass response is presented. It comprises active fiber within a pair of fiber Bragg gratings, and produces multiple taps with precise delay-time characteristics. The impulse response has demonstrated well in excess of 270 taps. The filter response demonstrates high resolution, having a narrow-band response with a Q of 325. The processor is also tunable, in both passband width and frequency
Keywords :
Q-factor; band-pass filters; circuit tuning; microwave filters; optical delay lines; optical fibre filters; optical information processing; transient response; Q factor; active-fiber Bragg-grating-pair structure; delay-time characteristics; frequency tuning; high-Q microwave bandpass response; impulse response; microwave signals; multiple taps; narrow-band response; optical fibre delay-line filters; passband width; photonic signal processing; resolution; tunable processor; Delay; Frequency; Gratings; Microwave filters; Optical fiber filters; Optical filters; Optical signal processing; Signal processing; Signal resolution; Signal sampling;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
