A Scalable 32-56 Gb/s 0.56-1.28 pJ/b Voltage-Mode VCSEL-Based Optical Transmitter in 28-nm CMOS

An optical transmitter (TX) data path is demonstrated in 28-nm CMOS which drives an 850-nm vertical-cavity surface-emitting laser (VCSEL) up to 56 Gb/s non-return-to-zero (NRZ). A dc-coupled single-ended voltage-mode driver employs area- and energy-efficient equalization techniques including slew-ra...

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