Efficient signalling on the continuous spectrum of nonlinear optical fibre

Iman Tavakkolnia, Majid Safari

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Due to the so-called capacity crunch, an increasing number of research have been focused on the subject of efficient signalling on nonlinear optical fibres and particularly methods based on nonlinear Fourier transform (NFT) [1-6]. This field of research includes the design of optical transmission using discrete spectrum, continuous spectrum (CS) [1], and combination of all degrees of freedom [2]. Recently in [4, 5], the capacity of the continuous spectrum is estimated and it is demonstrated that CS can be a suitable alternative for application in long-haul optical fibre links. A very important and unique property of the CS channel is the dependence of noise variance in nonlinear frequency domain on the signal amplitude [4, 5]. In this abstract, based on the statistical behaviour of noise in nonlinear frequency domain, we propose a simple but efficient method for signalling and performance improvement. Using this method, the channel is converted into an additive white Gaussian noise (AWGN) channel.
Original languageEnglish
Title of host publication2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
DOIs
Publication statusPublished - 30 Oct 2017

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