TRANSNET members Dr Anastasiia Vasylchenkova and Dr Morteza Kamalian-Kopae, along with friend of the TRANSNET Programme Pascal de Koster, recently hosted a live online seminar organised by Researcher App. The title of the event was: Nonlinear Fourier Transform in Optical Communication: Can the fibre nonlinearity be a friend? Let’s find out...
The nonlinear Fourier transform (NFT) has been successfully demonstrated as a promising tool for digital signal processing in optical communication. Fibre nonlinearity is the main limiting factor when it comes to expanding the fibre-connectivity infrastructure for longer distances and higher powers. The NFT provides a nonlinearity-tolerant method for signal modulation to reach a throughput value comparable with modern fibre-optic transmission.
The speakers, Anastasiia, Morteza Pascal, talked about NFT as a powerful mathematical tool and the challenges of its implementation in optical communication.
- Convolutional long short-term memory neural network equalizer for nonlinear Fourier transform-based optical transmission systems (Optics Express)
- Dispersion and Nonlinearity Identification for Single-Mode Fibers Using the Nonlinear Fourier Transform (Journal of Lightwave Technology)
- Full-Spectrum Periodic Nonlinear Fourier Transform Optical Communication Through Solving the Riemann-Hilbert Problem (Journal of Lightwave Technology)
About the speakers
Anastasiia Vasylchenkova is currently a Leverhulme Trust Research Fellow from the Optical Networks Group at UCL, working on the analytical modelling of ultrawideband optical communication. She received her PhD from Aston University for her research within the nonlinear Fourier transform approach for optical communications. Anastasiia has been a member of the TRANSNET Programme since 2018.
Morteza Kamalian-Kopae is a TRANSNET research fellow based at the Aston Institute of Photonic Technologies. He works on the nonlinear Fourier transform, specifically for periodic solutions of the nonlinear Schrödinger equation and machine learning solutions for fibre-optic communication systems. His research interests include signal processing in optical communication, analysis of nonlinear dynamics, and wireless communication systems.
Pascal de Koster is currently pursuing a PhD at the Center for Systems and Control at TU Delft. His research focusses on identification of Lax-integrable systems and nonlinear Fourier transforms, which have applications in modelling, predicting, and analysing nonlinear wave propagation, for example in shallow water canals and in deep ocean water, but also in optical fibres.
The seminar took place on Monday 8 November 2021 at 16:00 GMT. If you missed it or would like to listen to the discussion again, please click on the link below and press play.
About Researcher App
The Researcher App (or simply Researcher) was created to help scientists and researchers stay up to date with literature and discover new papers. It was founded in 2017 and now shares publications from over 15,000 journals across 10 research areas. Learn more about the platform the Research website: www.researcher-app.com
For a full list of published TRANSNET research, including journal and conference papers, please take a look at our publications page.