Nonlinear inverse synthesis for optical links with distributed Raman amplification


Nonlinear Fourier transform (NFT) and eigenvalue communication with the use of nonlinear signal spectrum (both discrete and continuous) have been recently discussed as a promising transmission method to combat fiber nonlinearity impairments. However, because the NFT-based transmission method employs the integrability property of the lossless nonlinear Schrödinger equation (NLSE), the original approach can only be applied directly to optical links with ideal distributed Raman amplification. In this paper, we investigate in details the impact of a non-ideal Raman gain profile on the performance of the nonlinear inverse synthesis (NIS) scheme, in which the transmitted information is encoded directly onto the continuous part of the nonlinear signal spectrum. We propose the lossless path-averaged (LPA) model for fiber links with non-ideal Raman gain profile by taking into account the average effect of the Raman gain. We show that the NIS scheme employing the LPA model can offer a performance gain of 3 dB regardless of the Raman gain profiles.

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Divisions: College of Engineering & Physical Sciences > Systems analytics research institute (SARI)
College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Additional Information: © 2016 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: EPSRC Grant UNLOC (EP/J017582/1) and EU Marie Skłodowska-Curie IF CHAOS (658982) project
Uncontrolled Keywords: coherent,inverse scattering,nonlinear Fourier transform,nonlinear signal processing,nonlinear optics,orthogonal frequency division multiplexing
Publication ISSN: 0733-8724
Last Modified: 15 Apr 2024 07:19
Date Deposited: 20 Jan 2017 08:05
PURE Output Type: Article
Published Date: 2016-04-15
Published Online Date: 2015-12-22
Accepted Date: 2015-12-17
Submitted Date: 2015-12-17
Authors: Le, Son Thai (ORCID Profile 0000-0002-3824-9456)
Prilepsky, Jaroslaw E. (ORCID Profile 0000-0002-3035-4112)
Rosa, Paweł
Ania-Castañón, Juan Diego
Turitsyn, Sergei K. (ORCID Profile 0000-0003-0101-3834)



Version: Accepted Version

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