Advances in multimode fiber transmission for the data center. - Richard Baca; Paul Kolesar; Jim Tatum; Deepa Gazula; Edward Shaw; Timothy Gray (OFC, 2015)

180 Gbps PAM4 VCSEL transmission over 300m wideband OM4 fibre. - S. M. R. Motaghiannezam; Ilya Lyubomirsky; H. Daghighian; C. Kocot; Timo Gray; J. A. Tatum; Adrian Amezcua Correa; Marianne Bigot-Astruc; D. Molin; Frank Achten; Pierre Sillard (OFC, 2016)

51.56 Gb/s SWDM PAM4 transmission over next generation wide band multimode optical fiber. - Yi Sun; Robert Lingle; Roman Shubochkin; Kasyapa Balemarthy; David Braganza; Timo Gray; W. J. Fan; K. Wade; D. Gazula; J. A. Tatum (OFC, 2016)

First demonstration of PAM4 transmissions for record reach and high-capacity SWDM links over MMF using 40G/100G PAM4 IC chipset with real-time DSP. - Frank Y. Chang; Yi Sun; Robert Lingle; You Zhang; Pengfei Cai; Mengyuan Huang; Dong Pan; Timo Gray; Sudeep Bhoja; Stephen Nelson; Jim Tatum (OFC, 2017)