DAC-Generated Nyquist-WDM PM-16QAM Channels for Spectrally Efficient Terabit Ultra-Long-Haul Transmission

We report a set of transmission experiments over high-performance PSCF with 112Gb/s and 125Gb/s PM-16QAM DAC-generated spectral engineered channels and near-Nyquist frequency spacing. Record net SE 7.30 b/s/Hz and net SE(x)distance 23,396 b/s/Hz·km were achieved