Amplitude and time skew aware equalization of 100-Gb/s PAM4 signals at the transmitter side for VCSEL-based short reach optical interconnects

摘要

A digital amplitude and time skew aware equalizer at the transmitter side is proposed to enhance the performance of a VCSEL-based 100-Gb/s PAM-4 transmission system. Approximately 0.9-dB and 2.5-dB power penalty improvement can be observed respectively in the case of 20°C and 40°C by applying proposed equalization after 50-m MMF transmission.