Abstract

We report the first successful field trial of up to 3 Tb/s real-time DP-16 QAM optical superchannel transport over 359-km EDFA-amplified fully managed flexible grid optical infrastructure using production grade hardware and management software from a live network operation center. The spectrum of the flexible grid ROADM was configured according to the requirement of the optical superchannel from a minimum of 37.5 up to 400 GHz with a resolution of 12.5 GHz. Spectral windows larger than 400 GHz were achieved by configuring multiple adjacent spectral slots enabling higher superchannel capacities. The optical superchannels of up to 3 Tb/s propagated alongside standard 50-GHz grid wavelength channels at 100 Gb/s. Stable error-free performance was measured for all sub-channel spacings down to 33.5 GHz, where a record net spectral efficiency of 5.97 b/s/Hz was achieved, an improvement of 49.25% over standard 50 GHz grid. We also show results on optical margin requirements when operating across a range of sub-channel spacings corresponding to different spectral efficiencies. Furthermore, a key technology building block for the 3-Tb/s optical superchannel, 200 G DP-16 QAM was trialed in a live WDM network to evaluate and demonstrate its applicability for deployment.

© 2015 IEEE

Real-time superchannel transmission over 10,500 km submarine link at 4.66 b/s/Hz spectral efficiency

Aleš Kumpera, Vince Dominic, Ahmed Awadalla, Lee Dardis, Jeffrey Rahn, Steve Sanders, Matthew Mitchell, Pierre Mertz, Gary Shartle, Scott Jackson, Stanley Blakey, Mina Sokar, David Krause, Han Sun, Kuang-Tsan Wu, and Paul Cannon
Opt. Express 26(12) 15039-15044 (2018)

1.12-Tb/s 32-QAM-OFDM superchannel with 8.6-b/s/Hz intrachannel spectral efficiency and space-division multiplexed transmission with 60-b/s/Hz aggregate spectral efficiency

Xiang Liu, S. Chandrasekhar, X. Chen, P. J. Winzer, Y. Pan, T. F. Taunay, B. Zhu, M. Fishteyn, M. F. Yan, J. M. Fini, E.M. Monberg, and F.V. Dimarcello
Opt. Express 19(26) B958-B964 (2011)

Transmission of 1.936 Tb/s (11 × 176 Gb/s) DP-16QAM superchannel signals over 640 km SSMF with EDFA only and 300 GHz WSS channel

Jianqiang Li, Magnus Karlsson, Peter A. Andrekson, and Kun Xu
Opt. Express 20(26) B223-B231 (2012)

25 Tb/s transmission over 5,530 km using 16QAM at 5.2 b/s/Hz spectral efficiency

J.-X. Cai, H. G. Batshon, H. Zhang, C. R. Davidson, Y. Sun, M. Mazurczyk, D. G. Foursa, O. Sinkin, A. Pilipetskii, G. Mohs, and Neal S. Bergano
Opt. Express 21(2) 1555-1560 (2013)

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)