Programmable multi-tap microwave photonic phase filtering via optical frequency comb shaping

We present a programmable multi-tap microwave photonic phase filter operating over an ultra-wide bandwidth. Complex programmability of >30 taps is achieved by optical line-by-line pulse shaping on a 10 GHz Gaussian optical frequency comb using a novel interferometric scheme. Through high-speed real-time measurements, we show programmable chirp control in the range ±0.6GHz ns.

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