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We present a cost-efficient GHz-wide arbitrary-shaped microwave photonic filter based on stimulated Brillouin scattering in fiber. By employing a directly-modulated laser with well-designed current waveform and feedback adjustment, the filter shape has been arbitrarily controlled with high precision.
We present a microwave photonic filter with variable selectivity and shape by using SBS and dispersion-induced phase mismatching in optical fiber. The selectivity and shape can be adjusted by tuning the pump power, polarization state and link dispersion.
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