Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 35,
  • Issue 18,
  • pp. 3909-3917
  • (2017)

Tomlinson–Harashima Precoding For Dispersion Uncompensated PAM-4 Transmission With Direct-Detection

Not Accessible

Your library or personal account may give you access

Abstract

Combating the destructive effects of power-fading in fiber-optic systems using direct-detection is the key for increasing the transmission rates and/or reach. Some of the solutions used in the past include additional components, e.g., a dispersion-compensating fiber or an IQ-modulator, which increase the costs of the entire system. Another solution, the compensation of the channel distortions using decision-feedback equalization, is limited to its error-propagation effect. In this paper, we introduce Tomlinson–Harashima precoding for the compensation of power-fading, which allows us to use the efficiency of feedback equalization for channels with spectral zeros without the disadvantage of error propagation. In an experimental investigation with different scenarios, including transmission over 25 km up to 100 km of standard single-mode fiber with gross data rates ranging from 56 to 560 Gb/s, we show that Tomlinson–Harashima precoding significantly outperforms decision-feedback equalization in all cases. Using Tomlinson–Harashima precoding, power-fading can be efficiently compensated for using digital signal processing only, keeping the system flexible and at the same time cost-effective.

PDF Article
More Like This
Nonlinear Tomlinson-Harashima precoding for direct-detected double sideband PAM-4 transmission without dispersion compensation

Haiyun Xin, Kuo Zhang, Deming Kong, Qunbi Zhuge, Yan Fu, Shi Jia, Weisheng Hu, and Hao Hu
Opt. Express 27(14) 19156-19167 (2019)

Pairwise Tomlinson-Harashima precoding for multiple-lane IM-DD transmissions

Meng Xiang, Yongfeng Qiu, Can Wei, Gai Zhou, Jilong Li, Cong Zhang, Jianping Li, Songnian Fu, and Yuwen Qin
Opt. Express 32(6) 9245-9254 (2024)

C-band 200 Gbit/s/λ PAM-4 transmission over 2-km SSMF using look-up-table pre-distortion combined with nonlinear Tomlinson-Harashima pre-coding

Yucheng Tu, Hailin Yang, Gai Zhou, Meng Xiang, Songnian Fu, Ming Tang, Yuwen Qin, and Luming Zhao
Opt. Express 30(9) 15416-15427 (2022)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


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