Hybrid opto-digital signal processing in 112 Gbit/s DP-16QAM and DP-QDB transmission for long-haul large- ( hbox {A}_ mathrm{eff} ) pure-silica-core fiber links. - Rameez Asif; Ramshah Ahmad; Rabeea Basir (Photonic Netw. Commun., 2016)