Abstract

Metro and long-haul optical networks drive the need of higher baud rate coherent hot-pluggable modules to achieve a lower total power consumption and flexible operation. In this paper, a pluggable 400G CFP2-DCO module carrying a net data rate of 424.9 Gb/s was demonstrated to achieve a high spectral efficiency of 5.67 bit/s/Hz by using either a pair of 64ch 75 GHz-spaced 3^th order super-Gaussian shaped DWDM mux/demux in a point-to-point system, or by ROADMs in a multi-span optical network. With the help of probabilistic constellation shaping, soft-decision forward error correction (SD-FEC), a high bandwidth coherent driver modulator (≥40 GHz) and a high-bandwidth intra-dyne coherent receiver (≥36 GHz), a superior back-to-back OSNR performance of 20.1 dB was achieved. For the point-to-point system, a good OSNR margin was experimentally verified up to 1500 km by considering the laser and mux/demux frequency drifts over lifetime. For the multi-span ROADM network, we investigated the filtering effect due to cascaded ROADMs and found that a tolerable OSNR penalty was observed after passing through 13 stages of ROADM.

Real-time transmission of 16 Tb/s over 1020km using 200Gb/s CFP2-DCO

H. Zhang, B. Zhu, S. Park, C. Doerr, M. Aydinlik, J. Geyer, T. Pfau, G. Pendock, R. Aroca, F. Liu, C. Rasmussen, B. Mikkelsen, P. I. Borel, T. Geisler, R. Jensen, D. W. Peckham, R. Lingle, D. Vaidya, M. F. Yan, P. W. Wisk, and D. J. DiGiovanni
Opt. Express 26(6) 6943-6948 (2018)

Real-time 400 Gbps/carrier WDM transmission over 2,000 km of field-installed G.654.E fiber

Hideki Maeda, Kohei Saito, Takeo Sasai, Fukutaro Hamaoka, Hiroki Kawahara, Takeshi Seki, Takeshi Kawasaki, and Junichi Kani
Opt. Express 28(2) 1640-1646 (2020)

Field trial of 24-Tb/s (60 × 400Gb/s) DWDM transmission over a 1910-km G.654.E fiber link with 6-THz-bandwidth C-band EDFAs

Anxu Zhang, Junjie Li, Lipeng Feng, Kai Lv, Fei Yan, Yusen Yang, Haiqiang Wang, Qifang Yang, Lingquan Wang, Xiaolei Zhang, Shibao Ding, Min Liao, Yi Yu, and Liangchuan Li
Opt. Express 29(26) 43811-43818 (2021)

Real-time measurement of a probabilistic-shaped 200Gb/s DP-16QAM transceiver

Zhuhong Zhang, Jianwu Wang, Si Ouyang, Jianfeng Wang, Jie Chen, Xianhua Liu, Jun Chen, Yongzhong Wang, Wenchang Wang, Tao Ding, Chuandong Li, Hossein Najafi, and Minggang Si
Opt. Express 27(13) 18787-18793 (2019)

Transmission of single-carrier 400G signals (515.2-Gb/s) based on 128.8-GBaud PDM QPSK over 10,130- and 6,078 km terrestrial fiber links

Junwen Zhang, Jianjun Yu, Benyuan Zhu, Fan Li, Hung-Chang Chien, Zhensheng Jia, Yi Cai, Xinying Li, Xin Xiao, Yuan Fang, and Yuanquan Wang
Opt. Express 23(13) 16540-16545 (2015)