540Gbps IMDD Transmission over 30km SMF using 110GHz Bandwidth InP EML. - Xin Chen; Ping Liao; Fangyi Tang; Zhoutian Liu; Haibo Wang; Richard Cronin; Yue Zhao; Huijian Zhang; James Moss; Samir Rihani; James Griffiths; Daniel Drysdale; et al. (OFC, 2025)