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The all-optical regenerator based on self-phase modulation (SPM) and off-centered filtering has attracted much interest thank to its simplicity and efficiency. The regenerator includes a nonlinear fibre and an off- centered filter placed at the output of the fibre. Designing the regenerator consists to find the appropriate set of parameters for the nonlinear fibre and the filter to have an S-shape...
We report on the simultaneous 2R regeneration of up to three 42.7-Gb/s wavelength-division-multiplexing channels in a simple dispersion-managed fiber section with signal quality improvements higher than 1.7 dB. The regenerator relies on self-phase modulation-induced spectral broadening of the optical channels inside the fiber section and subsequent bandpass filtering at shifted wavelengths, and it...
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