PDM-16QAM transmission performance over uncompensated fiber links
| Autor: | Pierpaolo Boffi, Paolo Martelli, Maurizio Magarini, Domenico Di Mola, Marianna Pepe, Marco Bertolini, Giancarlo Gavioli, Mario Martinelli, M. Cirigliano |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Physics
Signal processing business.industry TLC Spectral efficiency Signal Coherent detection polarization-division multiplexing quadrature amplitude modulation spectral efficiency Atomic and Molecular Physics and Optics Optics Transmission (telecommunications) Wavelength-division multiplexing Electronic engineering Channel spacing Overhead (computing) business Quadrature amplitude modulation |
| Popis: | The dependence of propagation performance on the signal baud-rate is investigated by simulations for WDM PDM-16QAM systems operating at a spectral efficiency of 4 b/s/Hz. We take into account the case of transmission over uncompensated links, both for standard single-mode fiber and non-zero dispersion-shifted fiber. Three baud-rates are tested: 16.25, 32.5 and 65 Gbaud, including overhead for soft-decision FEC. Hence, we compare the performance limited by the nonlinear impairments in case of 100, 200 and 400 Gb/s data rate transmission, respectively. We demonstrate that the trade-off between higher OSNR margin and nonlinear transmission penalty favors transmission at lower baud-rate (16.25 Gbaud) and narrower channel spacing (25 GHz), among the three different simulated baud-rates. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|