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The regenerative properties are investigated for a wavelength converter designed for practical pulse widths. It is better able to cope with a reduction in the optical signal-to-noise ratio than waveform distortion due to residual dispersion.
A theoretical model is presented to analyze the noise transfer characteristics in a semiconductor optical amplifier (SOA) under the excitation of a noisy pump signal and a noise-free probe signal. An analytical expression is derived for the optical signal-to-noise ratio (OSNR) of the output probe signal from the SOA. The influence of the gain saturation of the SOA, and the pump and probe signal powers...
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