A Two-Segment Optical DAC 40 Gb/s PAM4 Silicon Microring Resonator Modulator Transmitter in 65nm CMOS
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© 2017 IEEE. A two-segment silicon photonic microring modulator implements an optical DAC for PAM4 modulation. Independent level and edge-rate control is achieved using segmented MSB/LSB pulsed-cascode drivers. The 65nm CMOS transmitter achieves 40Gb/s operation at 4.38mW/Gb/s while driving each microring modulator segment with 4.4Vppd swing.
author list (cited authors)
Roshan-Zamir, A., Wang, B., Telaprolu, S., Yu, K., Li, C., Seyedi, M. A., ... Palermo, S.