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In this paper, we have proposed and experimentally demonstrated a new approach to implement microwave photonic filter with tunable and selectable multiple passbands by using reflective and cascaded fiber Mach–Zehnder interferometers and dispersive medium. By employing the proposed structure, microwave photonic filter (MPF) with more aperiodic passbands compared with previous methods have been achieved...
In this article, we have proposed and demonstrated two new approaches to implement microwave photonic filter with tunable multi-passband based on reflective fiber Mach-Zehnder interferometer and cascaded fiber Mach-Zehnder interferometers and dispersive medium. The proposed MPF has simple structure and is easy to implement, also the experimental results show good tunability and switch performances.
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.
We demonstrate multitap microwave photonic filter with complex coefficient taps as a programmable spectral phase filter based on single-sideband modulation of an optical frequency comb, and line-by-line optical pulse shaping in an interferometeric scheme.
We demonstrate tunable programmable microwave photonic filters based on optical frequency combs. The utilization of optical comb enables to scale multi tap filters to large number of taps. By using optical line-by-line pulse shaping to program tap weights, we shape the filter's bandpass. In contrast to our previous work, we demonstrate a much simplified technique based on intensity modulator biased...
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