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Photonic signal processing of microwave signals using an active-fiber Bragg-grating-pair structure

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2 Author(s)
Hunter, D.B. ; Dept. of Electr. Eng., Sydney Univ., NSW, Australia ; Minasian, R.A.

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

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:45 ,  Issue: 8 )