Iman Tavakkolnia: "Nonlinear Fourier transform for long-haul optical fibre links"

University of Edinburgh, IDCOM

Abstract

Optical fibres play a key role in many data transmission systems, particularly over long-haul high-data-rate links between continents. However, the capacity of optical fibres is still unknown, and the effective spectral efficiency in long distance optical fibre links is limited due to several physical constraints. Moreover, the exponential growth of bandwidth demand has resulted permanent need for investigating more efficient methods of data transmission using optical fibre. In this talk, the nonlinear Fourier transform for long haul optical fibre links is investigated. Using the inverse scattering method known for solving partial differential equations such as nonlinear Schrödinger equation, we analyse a fibre optic communication system which maps data on nonlinear frequency domain defined by nonlinear Fourier transform. By signalling over both discrete and continuous spectra of nonlinear frequency domain, the degrees of freedom of the channel can be exploited to potentially increase the achievable data-rate in an attempt to approach the capacity of the optical fibre. An optical fibre communication structure is proposed, and some of the main results are presented in this talk.

Biography

Iman Tavakkolnia is a PhD student at the University of Edinburgh. He has received his BSc and MSc degrees from University of Tehran and Sharif University of Technology, respectively. His research interests are optical fibre and optical wireless communication systems. He is currently working on nonlinear Fourier transform for long-haul optical fibre links.

Further Information

• Mr Iman Tavakkolnia