Combating Fiber Nonlinearity Using Dual-Order Raman Amplification and OPC


We experimentally demonstrate, for the first time, a significant 34-dB nonlinear product power compensation in a mid-link optical phase conjugation (OPC) system using an optimized dual-order distributed Raman amplification (DRA) technique. The dual-order backward (BW)-pumping scheme shows a record signal power symmetry of 97% over 50.4-km single-mode fiber (SMF) spans. We also demonstrate that the required accuracy for span-to-span power alignment is within ±1 dB in order to maintain 20-dB nonlinear product compensation. For a 256-Gb/s dual-polarization-16 QAM transmission over 100.8 km (2×50.4 km) SMF with mid-link OPC, the proposed Raman amplification scheme enables the OPC to improve the nonlinear threshold by 7 dB and the optimum signal launch power by 5 dB compared with the system without OPC.

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Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
College of Engineering & Physical Sciences
Additional Information: © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. Funding: This work was supported by the U.K. EPSRC Programme under Grant EP/L000091/1 (PEACE) and Grant EP/S003436/1 (PHOS).
Uncontrolled Keywords: Optical amplifiers,nonlinear optics,optical fiber communication,phase conjugation,Electronic, Optical and Magnetic Materials,Atomic and Molecular Physics, and Optics,Electrical and Electronic Engineering
Publication ISSN: 1941-0174
Last Modified: 06 May 2024 07:30
Date Deposited: 20 Jun 2019 10:44
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
https://ieeexpl ... cument/8691528/ (Publisher URL)
http://research ... (Related URL)
PURE Output Type: Article
Published Date: 2019-06-01
Published Online Date: 2019-04-15
Accepted Date: 2019-04-08
Authors: Al-khateeb, Mohammad (ORCID Profile 0000-0002-1367-6777)
Tan, Mingming (ORCID Profile 0000-0002-0822-8160)
Zhang, Tingting (ORCID Profile 0000-0002-3901-6267)
Ellis, Andrew D. (ORCID Profile 0000-0002-0417-0547)



Version: Accepted Version

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