Abstract
We present an advanced online digital signal processing (DSP) method for correcting the phase and amplitude distortions caused by the phase modulation of the pump source and its interaction with the dispersive fibre channel in transmission systems using cascaded fibre-optical parametric amplifiers. The proposed algorithm is numerically demonstrated to achieve significant (up to 3.7 dB for a four-tone pump-phase modulation scheme) Q2-factor performance improvement over conventional DSP in 16 quadrature-amplitude modulation signal transmission.
| Original language | English |
|---|---|
| Pages (from-to) | 13467-13477 |
| Number of pages | 11 |
| Journal | Optics Express |
| Volume | 32 |
| Issue number | 8 |
| Early online date | 27 Mar 2024 |
| DOIs | |
| Publication status | Published - 8 Apr 2024 |
Bibliographical note
Published by Optica Publishing Group under the terms of the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/). Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.Data Access Statement
Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.Funding
H2020 Marie Skłodowska-Curie Actions (EC GA 860360; Engineering and Physical Sciences Research Council (EP/R035342/1, EP/X019241/1); Royal Academy of Engineering)
| Funders | Funder number |
|---|---|
| Royal Academy of Engineering | |
| H2020 Marie Skłodowska-Curie Actions | EC GA 860360 |
| Engineering and Physical Sciences Research Council | EP/R035342/1, EP/X019241/1 |
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