Gianluca Meloni

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—Enhanced-SSFM digital backpropagation (DBP) is experimentally demonstrated and compared to conventional DBP. A 112 Gb/s PM-QPSK signal is transmitted over a 3200 km dispersion-unmanaged link. The intradyne coherent receiver includes single-step digital backpropagation based on the enhanced-SSFM algorithm. In comparison, conventional DBP requires twenty(More)
Nonlinearity mitigation based on the enhanced split-step Fourier method (ESSFM) for the implementation of low-complexity digital backpropagation (DBP) is investigated and experimentally demonstrated. After reviewing the main computational aspects of DBP and of the conventional split-step Fourier method (SSFM), the ESSFM for dual-polarization signals is(More)
Abnormally synchronized neural oscillations within the subthalamic nucleus have been proposed as a contributor to the pathophysiology of Parkinson's disease. Recent studies have demonstrated phase-amplitude coupling between beta rhythms and high frequency oscillations in the subthalamic nucleus in unmedicated Parkinsonian patients. However, the nature of(More)
Control and data plane innovations are driving the evolution of flexible grid optical networks enabling more granular reservation of spectrum portion. On the one hand, the path computation element (PCE) is evolving toward the stateful architecture to effectively perform reoptimization on existing LSPs. On the other hand, superchannels are emerging as an(More)
—Time-frequency packing (TFP) transmission provides the highest achievable spectral efficiency with a constrained symbol alphabet and detector complexity. In this work, the application of the TFP technique to fiber-optic systems is investigated and experimentally demonstrated. The main theoretical aspects, design guidelines, and implementation issues are(More)