Dual-Polarization Hermite-Gaussian-Based NFDM Transmission System

The nonlinear frequency division multiplexing (NFDM) transmission scheme continues to attract high interests in optical communications due to its robustness against nonlinearity and dispersion. The use of Hermite Gaussian (HG) wave-carriers has been proposed and has been shown to out-perform conventional methods used by state-of-the-art single polarization NFDM systems due to their excellent time-bandwidth-product (TBP) efficiency. In this work, employing the Manakov model, we investigate and demonstrate, for the first time, a high-capacity dual polarization NFDM (DP-NFDM) transmission system based on HG wave-carriers, enhanced by a single parameter equalizer. We report here, a record high spectral efficiency of 12 bits/s/Hz for dual-polarization HG-based DP-NFDM systems.

Automated summary

The nonlinear frequency division multiplexing (NFDM) transmission scheme, known for its robustness against nonlinearity and dispersion, has attracted high interests in optical communications. This study introduces the use of Hermite Gaussian (HG) wave-carriers in a high-capacity dual polarization NFDM (DP-NFDM) transmission system, enhanced by a single parameter equalizer. The system achieves a record-high spectral efficiency of 12 bits/s/Hz.