2-pJ/bit (On-Chip) 10-Gb/s Digital CMOS Silicon Photonic Link

We report on a 10-Gb/s digital-to-digital CMOS silicon photonic link with a 2.1-pJ/bit on-chip energy efficiency, using a photon energy of 1.4-pJ/bit and 680-fJ/bit transceivers that integrate 130-nm SOI CMOS photonic devices with 40-nm bulk CMOS circuits.