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ONS kick-off meeting, Kista, 14 Apr. 2010 DSP algorithms for coherent detection. Marco Forzati Acreo Netlab. DSP for coherent detection: principle. Cromatic Dispersion compensation. Carrier Phase recovery. Polarization Mode Dispersion compensation.
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ONS kick-off meeting, Kista, 14 Apr. 2010 DSP algorithms for coherent detection Marco Forzati Acreo Netlab
DSP for coherent detection: principle Cromatic Dispersion compensation Carrier Phase recovery Polarization Mode Dispersion compensation
DSP for coherent detection: linear equalisation Numerical simulations
DSP for coherent detection: linear equalisation Numerical simulations
DSP for coherent detection: non-linear equalisation Linear compensation, adaptive CMA and Viterbi-Viterbi Experiment (HHIdata) “Lumped” non-linear compensation adaptive CMA and Viterbi-Viterbi
PolMux-QPSK: quadrature phase and polarisation multiplexing: 4 bits per transmitted symbol Transmission using coherent detection and DSP-aided equalisation of linear and non-linear impairments
2) Non-linear cross-talk: study of polarisation issues 5.0 4.5 4.0 3.5 OSNR penalty 3.0 2.5 2.0 1.5 0° 45° 90° Relative polarisation angle
3) Linear compensation: algorithms comparison Numerical simulations
3) Non-linear compensation, SPM and XPolM Linear compensation, with FFT-based compensation, 25 tap adaptive CMA and Viterbi-Viterbi Experiment (Politecnicodi Torinodata) “Lumped” non-linear compensation (FFT-based CD and non-linear phase compensation at each loop), 25 tap adaptive CMA and Viterbi-Viterbi