An energy efficient transmitter based on a CMOS chip and silicon photonics

https://techxplore.com/news/2023-11-energy-efficient-transmitter-based-cmos.html

"High-yield and low-cost electrical driver amplifier and optical modulator... relatively slow transmitter modulation with strong modulation contrast... 112 gigabaud-112 Gbps. on-off keying rate, 224 Gbps pulse-amplitude modulation, energy efficiency below picojoules per bit... silicon waveguides... signal equalization, complex signal formatting and spectral synthesis realized within electrical to optical or optical to electrical conversion processes,.. 200 GBaud transmission with silicon photonic modulator"