Impact of Inter-Channel Nonlinearities on the Planning of 25-100 Gb/s Elastic Optical Networks

In this paper, we examine how typical transmission systems can be made tunable in datarate, up to 100 Gb/s, through modulation-format versatility. We investigate through extensive numerical simulations the available reach versus datarate, taking in particular into account the nonlinear interaction b...

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Bibliographic Details
Published in:Journal of lightwave technology 2011-05, Vol.29 (9), p.1326-1334
Main Authors: Rival, O, Villares, G, Morea, A
Format: Article
Language:English
Subjects:
Binary phase shift keying
Coherent communications
communication system nonlinearities
communication system planning
Estimation
Optical fiber networks
Optical noise
Signal to noise ratio
Wavelength division multiplexing
wavelength-division multiplexed (WDM)
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Summary:In this paper, we examine how typical transmission systems can be made tunable in datarate, up to 100 Gb/s, through modulation-format versatility. We investigate through extensive numerical simulations the available reach versus datarate, taking in particular into account the nonlinear interaction between channels in this mixed-format context. We show how these versatile transmission systems can be used to design a so-called elastic optical network in which the datarate of a wavelength is adapted to both the traffic that needs to be transported and the amount of physical impairments that need to be overcome. We examine the benefits of such elastic optical networks in the case of a European backbone network, showing that elastic architectures outperform fixed-rate networks by up to 21% in terms of required number of opto-electronic interfaces.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2011.2110636