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A high Q microwave photonic filter is proposed and experimentally demonstrated. It is based on a recirculating delay line comprising a semiconductor optical amplifier used to generate negative tap. A frequency response with a high Q of 543, a rejection ratio of 40 dB and good shape factor is obtained.
We propose and experimentally demonstrate a novel all-optical microwave filter with high frequency selectivity. It is based on a recirculating delay line (RDL) loop in which a semiconductor optical amplifier (SOA) is followed by a tunable narrowband optical filter and a 1 × 2 10:90 optical coupler. Converted signal used as a negative tap is generated through wavelength conversion employing the cross-gain...
A microwave photonic filter with passband and stopband interchanged is proposed and demonstrated. The structure is based on a recirculating delay line loop comprising a semiconductor optical amplifier (SOA) and a tunable narrowband optical filter, converted signal used as negative tap is generated employing the cross-gain modulation of the amplified spontaneous emission spectrum of the SOA. The filter...
We demonstrate all-optical ultra-wideband doublet pulse generation by single SOA and 1 km SMF. The doublet pulses are transmitted over 5 km SMF by dispersion compensation without degradation. The pulse shape modulation is also shown.
We demonstrate 40 Gb/s inverted and non-inverted wavelength conversion (WC) in the whole C-band based on a SOA and an optical bandpass filter. The WC is non-inverted regardless if the filter is blue- or red-shifted with respect to the central wavelength of the converted signal.
We theoretically discuss 40 Gb/s semiconductor optical amplifier (SOA)-based wavelength conversion (WC) using a detuning optical bandpass filter. Both inverted and non-inverted WCs are obtained by shifting the filter central wavelength with respect to the probe wavelength when input data signal is RZ format. The filter detuning is essential to different output formations
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