Extensive fiber comparison and GN-model validation in uncompensated links using DAC-generated Nyquist-WDM PM-16QAM channels. - Antonino Nespola; Stefano Straullu; Andrea Carena; Gabriella Bosco; R. Cigliutti; Vittorio Curri; Pierluigi Poggiolini; Masaaki Hirano; Yoshinori Yamamoto; T. Sasaki; Johan Bauwelinck; K. Verheyen; et al. (OFC/NFOEC, 2013)