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A multi-tap photonic microwave filter based on two-pump fiber optical parametric amplifier (OPA) is proposed and an 8-tap filter is experimentally demonstrated. Tunability of the filter is also investigated in the paper, which shows consistency between experimental and theoretical results.
We proposed and demonstrated a novel approach to implement a photonic microwave filter by using cross-gain modulation in fiber optical parametric amplifier (OPA). Two-tap notch filter and four-tap bandpass filter were successfully demonstrated.
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