A. Hashemi Talkhooncheh, W. Zhang, M. Wang, D. J. Thomson, M. Ebert, L. Ke, G. T. Reed, A. Emami, “A 100-Gb/s PAM4 Optical Transmitter in a 3-D-Integrated SiPh-CMOS Platform Using Segmented MOSCAP Modulators,” IEEE Journal of Solid-State Circuits, vol. 58, no. 1, pp. 30-44, Jan. 2023, doi: 10.1109/JSSC.2022.3210906.