A 28-Gb/s PAM-4 Fully-Integrated Optical Receiver with High-Speed Silicon Photodetector in 28-nm CMOS. - Dongshen Zhan; Liping Zhong; Wentao Zhou; Zhenyu Yao; Xiongshi Luo; Yangyi Zhang; Hemiao Wang; De Zhou; Quan Pan 002 (ICTA, 2023)