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In this paper we investigate the use of pulse shaping of the signal to be converted into a saw-tooth waveform (i.e. a pulse with leading/trailing edges of a constant intensity gradient), to improve the performance of the converted signal. Due to their linear gradient, when saw-tooth pulses are used as the XPM pump, they induce a constant frequency shift to the signal. These new frequency components...
We experimentally demonstrate the use of saw-tooth optical pulses, generated using a superstructured fiber Bragg grating, to achieve high performance and efficient all-optical wavelength conversion in a scheme based on cross-phase modulation in a highly nonlinear fiber, with subsequent offset filtering. Compared to the use of more conventional waveforms, such as Gaussian pulses, the purpose-shaped...
We carried out an off-line 10.7 Gb/s transmission experiment over installed fiber, using narrow-filtered duobinary and a noise-correlation-sensitive MLSE receiver. We achieved MLSE-systems record distance (1300 km, 2048 states) and record efficiency (800 km, 64 states).
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