Multitap microwave photonic filters with programmable phase response via optical frequency comb shaping
Metcalf, Andrew J.
Weiner, Andrew M.
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We present a programmable multitap microwave photonic filter with an arbitrary phase response operating over a broad bandwidth. Complex coefficient taps are achieved by optical line-by-line pulse shaping on a 10 GHz flat optical frequency comb using a novel interferometric scheme. Through high-speed real-time measurements, we demonstrate programmable chirp control of a waveform via phase filtering. This achievement enables us to compress broadband microwave signals to their corresponding bandwidth-limited pulse duration.
Optics LettersThe article of record as published may be found at http://dx.doi.org/10.1364/ol.37.000845