Dual-Polarization Non-Linear Frequency-Division Multiplexed Transmission With $b$-Modulation

We demonstrate, for the first time, a $b$-modulated dual-polarisation NFDM transmission in simulation, achieving a record net data rate of 400 Gbps (SE of 7.2 bit/s/Hz) over 960 km. The proposed scheme shows 1 dB Q-factor improvement over qc-modulation scheme.