TY - GEN A1 - Liu, Z A1 - Xu, T A1 - Saavedra, G A1 - Bayvel, P UR - https://doi.org/10.1364/OFC.2018.W1J.6 AV - restricted N2 - We report on 4×112Gb/s direct-detection PAM4 transmission over 300-km standard single mode fiber. Chromatic dispersion is digitally compensated at the transmitter side. ID - discovery10051532 CY - San Diego, CA, USA PB - OSA Publishing N1 - © OSA 2018. This version is the author accepted manuscript. For information on re-use, please refer to the publisher?s terms and conditions. TI - 448-Gb/s PAM4 transmission over 300-km SMF-28 without dispersion compensation fiber Y1 - 2018/01/01/ ER -