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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...
We demonstrate a scheme to scale the bandwidth of a frequency comb generated by phase modulation of CW lasers using four-wave mixing in a silicon nano-waveguides, resulting in >100 comb lines spaced by 10-GHz within 5-dB bandwidth.
We present bandwidth reconfigurable RF photonic filtering with 20-ns reconfiguration speed based on a frequency comb with rapidly switched optical bandwidth.
We present 10-GHz ultra-broadband flat-topped optical frequency comb (> 3.64-THz within 3.5-dB power variation) based on seeding a highly nonlinear fiber with transform-limited Gaussian-shaped pulse from directly generated Gaussian-shaped comb.
We present an optical frequency comb with, to the best of our knowledge, unprecedented flatness, high stability and a large number of spectral lines, which allows for high quality pulse compression using single mode fiber.
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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