A 112 Gb/s PAM4 Silicon Photonics Transmitter With Microring Modulator and CMOS Driver Li, Hao ; Casper, Bryan ; Balamurugan, Ganesh ; Sakib, Meer ; Sun, Jie ; Driscoll, Jeffery ; Kumar, Ranjeet ; Jayatilleka, Hasitha ; Rong, Haisheng ; Jaussi, James Abstract Publication: Journal of Lightwave Technology Pub Date: January 2020 DOI: 10.1109/JLT.2019.2938731 Bibcode: 2020JLwT...38..131L