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We report on the complexity comparison of the digital signal processing (DSP) module to compensate chromatic dispersion and non-linearities, i.e. digital backward propagation (DBP) algorithm. The dual-polarization quadrature phase shift keying (DP-QPSK), dual-polarization quadrature duobinary (DP-QDB) and dual-polarization quadrature amplitude modulation (DP-16QAM) encoded signals at a bit-rate of...
We optimize digital backward-propagation (DBP) to compensate signal distortions for various launch powers and bit rates. By optimizing transmission parameters and nonlinear phase calculating point, multi-span DBP gives significant improvement.
We investigate the performance of digital backward-propagation (DBP) in single-channel phase-encoded transmission systems for various in-line compensation schemes and depending on the parameters of DBP. A modified non-iterative DBP setup improves the eye opening by 3.5dB.
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