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The benefit of split nonlinearity compensation for single channel optical fiber communications

Lavery, D; Ives, DJ; Liga, G; Alvarado, A; Savory, SJ; Bayvel, P; (2016) The benefit of split nonlinearity compensation for single channel optical fiber communications. In: The proceedings of 2016 IEEE Photonics Conference (IPC). (pp. pp. 799-802). IEEE Green open access

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Abstract

In this Letter we analyze the benefit of digital compensation of fiber nonlinearity, where the digital signal processing is divided between the transmitter and receiver. The application of the Gaussian noise model indicates that, where there are two or more spans, it is always beneficial to split the nonlinearity compensation. The theory is verified via numerical simulations, investigating transmission of single channel 50 GBd polarization division multiplexed 4- and 256-ary quadrature amplitude modulation signals over 100 km standard single mode fiber spans, using lumped amplification. It is shown, theoretically, that the SNR gain for long distances and high bandwidth transmission is 1.5 dB versus transmitter- or receiver-based nonlinearity compensation.

Type: Proceedings paper
Title: The benefit of split nonlinearity compensation for single channel optical fiber communications
Event: 2016 IEEE Photonics Conference (IPC)
Location: Waikoloa, HI, USA
Dates: 02 October 2016 - 06 October 2016
ISBN-13: 978-1-5090-1906-9/16
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/IPCon.2016.7831073
Publisher version: http://dx.doi.org/10.1109/IPCon.2016.7831073
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Coherent optical communications, quadrature amplitude modulation (QAM), nonlinearity compensation, Signal to noise ratio, optical transmitters, interference, nonlinear optics, optical receivers, mathematical model
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1497085
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