Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 36,
  • Issue 1,
  • pp. 103-113
  • (2018)

Trans-Atlantic Field Trial Using High Spectral Efficiency Probabilistically Shaped 64-QAM and Single-Carrier Real-Time 250-Gb/s 16-QAM

Open Access Open Access

Abstract

We report the transmission of probabilistically shaped (PS) 64-ary quadrature amplitude modulation (QAM) at 7.46 b/s/Hz over a 5523-km in-service trans-Atlantic fiber-optic cable that consists of 65–89-km spans of Erbium-doped fiber amplifier only amplified fiber. Using a looped-back system configuration, we achieve 5.68 b/s/Hz over a trans-Pacific-equivalent distance of 11 046 km. Net spectral efficiencies are increased by 18% and 80% by using PS, at 5523 km and 11 046 km, respectively, compared to uniform square QAM. Throughout our experiments, we pay particular attention that our claims are backed by implementable forward error correction schemes. In addition, we demonstrate real-time coherent transmission of single-carrier 200 and 250-Gb/s uniform 8-QAM and 16-QAM at 4 b/s/Hz over the 5523-km cable.

© 2017 OAPA

PDF Article
More Like This
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)

30.4 Tb/s transmission over transpacific distance using 200 Gb/s and dual wavelength 400 Gb/s 16QAM at 6.0 b/s/Hz spectral efficiency

J.-X. Cai, H. G. Batshon, H. Zhang, M. Mazurczyk, O. Sinkin, D. G. Foursa, A. Pilipetskii, G. Mohs, and Neal S. Bergano
Opt. Express 22(8) 9116-9122 (2014)

Experimental and numerical comparison of probabilistically shaped 4096 QAM and a uniformly shaped 1024 QAM in all-Raman amplified 160 km transmission

Seiji Okamoto, Masaki Terayama, Masato Yoshida, Keisuke Kasai, Toshihiko Hirooka, and Masataka Nakazawa
Opt. Express 26(3) 3535-3543 (2018)

Cited By

Optica participates in Crossref's Cited-By Linking service. Citing articles from Optica Publishing Group journals and other participating publishers are listed here.


Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved