title: Single channel and WDM transmission of 28 Gbaud zero-guard-interval CO-OFDM.
abstract: We report on the experimental demonstration of single channel 28 Gbaud QPSK and 16-QAM zero-guard-interval (ZGI) CO-OFDM transmission with only 1.34% overhead for OFDM processing. The achieved transmission distance is 5120 km for QPSK assuming a 7% forward error correction (FEC) overhead, and 1280 km for 16-QAM assuming a 20% FEC overhead. We also demonstrate the improved tolerance of ZGI CO-OFDM to residual inter-symbol interference compared to reduced-guard-interval (RGI) CO-OFDM. In addition, we report an  8-channel wavelength-division multiplexing (WDM) transmission of  28 Gbaud QPSK ZGI CO-OFDM signals over 4160 km.
authors.affiliation: Department of Electrical and Computer Engineering, McGill University, Montreal, QC H3A 2A7, Canada. qunbi.zhuge@mail.mcgill.ca
authors.forename: Qunbi
authors.initials: Q
authors.lastname: Zhuge
authors.forename: Mohamed
authors.initials: M
authors.lastname: Morsy-Osman
authors.forename: Mohammad E
authors.initials: ME
authors.lastname: Mousa-Pasandi
authors.forename: Xian
authors.initials: X
authors.lastname: Xu
authors.forename: Mathieu
authors.initials: M
authors.lastname: Chagnon
authors.forename: Ziad A
authors.initials: ZA
authors.lastname: El-Sahn
authors.forename: Chen
authors.initials: C
authors.lastname: Chen
authors.forename: David V
authors.initials: DV
authors.lastname: Plant