Db. Hunter et Ra. Minasian, PHOTONIC SIGNAL-PROCESSING OF MICROWAVE SIGNALS USING AN ACTIVE-FIBERBRAGG-GRATING-PAIR STRUCTURE, IEEE transactions on microwave theory and techniques, 45(8), 1997, pp. 1463-1466
A new active photonic signal processor which achieves a high-Q microwa
ve bandpass response if 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 resoluti
on, having a narrow-band response with a Q of 325, The processor is al
so tunable, in both passband width and frequency.