High-Speed Turbo Equalization for 224 Gb/s PAM4 IM/DD Systems with Standardized FEC. - Tianyuan Kong; Nebojsa Stojanovic; Balázs Matuz; Tom Wettlin; Emna Ben Yacoub; Stefano Calabrò; Xianbo Dai; Maxim Kuschnerov; Stephan Pachnicke (OFC, 2026)