Real-Time Demonstration of Silicon-Photonics-Based QSFP-DD 400GBASE-DR4 Transceivers for Datacenter Applications. - Chongjin Xie; Peter Magill; David Li; Yinxing Zhang; Long Zheng; Anbin Wang; Yun Bao; Chunchun Sui; Matthew Streshinsky; Jianwei Mu; Sigeng Yang; Wanju Sun (OFC, 2020)