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Project: Analysis and Mitigation of crosstalk Effects in multicore fibre -based Networks

Acronym: AMEN
Main Objective: This project aims at developing and analysing models for the statistical characterisation of ICXT in MCFs, proposing techniques for mitigating those effects in MCF-based networks, and using those achievements in the development of ICXT-aware algorithms for routing, spectrum and core assignment (RSCA) in MCF-based elastic optical networks (EONs). The project focuses on the theoretical and simulation studies of the statistical characteristics of ICXT in MCF and techniques for mitigating its impact on MCF-based networks. These studies are complemented by the experimental demonstration of the main outcomes of the theoretical and simulation studies.

The project takes advantage of the expertise on experimental work and system design on MCF technology of NICT (National Institute of Information and Communications Technology, from Japan) combined with the experience of IT (Optical Communications Group at Lisbon site of Instituto de Telecomunicações) on theoretical modelling and analysis of optical fibre telecommunication systems and networks.

The project has three particular objectives.
The first one is focused on the investigation of the modelling and statistical characterisation of ICXT of MCFs using theoretical, numerical simulation and experimental work. Particularly, the rigorous statistical and spectral characterisation of ICXT is performed, and the impact of fibre nonlinearity on ICXT statistics and spectral features is assessed. Using that characterisation, the impact of ICXT statistical features on MCF system performance is assessed.
The second objective is focused on the investigation of modulation techniques for mitigation of ICXT effects in MCF-based networks, using theoretical, numerical simulation and experimental work. In particular, the ICXT mitigation achieved by adaptive techniques in orthogonal frequency division multiplexing (OFDM) modulation is assessed. Furthermore, new complex multi-core (spatial) modulation formats, that exploit the time and spectral varying characteristics and random nature of ICXT, are proposed and their performance in terms of tolerance to ICXT is compared with other multi-core modulation formats already proposed in the literature.
The third objective of the project is focused on the study of the impact of ICXT on some network layer aspects of MCF-based flexgrid EONs, using theoretical and numerical simulation work. In particular, simplified equivalent models for quantification of impact of ICXT (taking into account its random nature) on the performance of MCF-based EONs are proposed, ICXT-aware RSCA algorithms taking into account the ICXT effects are proposed, and their performance is compared with the performance of other RSCA algorithms already proposed in the literature.
Reference: UID/EEA/50008/2013
Funding: FCT
Start Date: 01-04-2016
End Date: 01-12-2018
Team: Adolfo da Visitação Tregeira Cartaxo, João José de Oliveira Pires, João Paulo Neto Torres, Luís Gonçalo Lecoq Vences e Costa Cancela, Ruben Soares Luis, Tiago Manuel Ferreira Alves, João Lopes Rebola
Groups: Optical Networking – Lx
Partners: National Institute Information and Communications Technology - Optical Networks (NICT)
Local Coordinator: Adolfo da Visitação Tregeira Cartaxo
Associated Publications
  • 7Papers in Journals
  • T. M. F. Alves, A. Cartaxo, Characterization of the stochastic time evolution of short-term average intercore crosstalk in multicore fibers with multiple interfering cores, Optics Express, Vol. 26, No. 4, pp. 4605 - 4620, February, 2018 | BibTex
  • T. M. F. Alves, A. Cartaxo, Intercore Crosstalk in Homogeneous Multicore Fibers: Theoretical Characterization of Stochastic Time Evolution, IEEE/OSA Journal of Lightwave Technology, Vol. 35, No. 21, pp. 4613 - 4623, November, 2017 | BibTex
  • T. M. F. Alves, A. Cartaxo, R.S. Luis, B. J. Puttnam, Y. Awaji, N. Wada, Intercore crosstalk in direct-detection homogeneous multicore fiber systems impaired by laser phase noise, Optics Express, Vol. 25, No. 23, pp. 29417 - 29431, November, 2017 | BibTex
  • R. Soeiro, T. M. F. Alves, A. Cartaxo, Dual polarization discrete changes model of inter-core crosstalk in multi-core fibers, IEEE Photonics Technology Letters, Vol. 29, No. 16, pp. 1395 - 1398, August, 2017 | BibTex
  • A. Cartaxo, T. M. F. Alves, Discrete changes model of inter-core crosstalk of real homogeneous multi-core fibers, IEEE/OSA Journal of Lightwave Technology, Vol. 35, No. 12, pp. 2398 - 2408, June, 2017 | BibTex
  • T. M. F. Alves, R.S. Luis, B. J. Puttnam, A. Cartaxo, Y. Awaji, N. Wada, Performance of adaptive DD-OFDM multicore fiber links and its relation with intercore crosstalk, Optics Express, Vol. 25, No. 13, pp. 16017 - 16027, June, 2017 | BibTex
  • A. Cartaxo, R.S. Luis, B. J. Puttnam, T. Hayashi, Y. Iwaji, N. Wada, Dispersion Impact on the Crosstalk Amplitude Response of Homogeneous Multi-Core Fibers, IEEE Photonics Technology Letters, Vol. 28, No. 17, pp. 1858 - 1861, September, 2016 | BibTex
  • 10Papers in Conferences
  • T. M. F. Alves, A. Cartaxo, Experimental and analytical characterization of time variation of ICXT in MCFs with multiple interfering cores, OSA Optical Fiber Communications - OFC, San Diego, United States, Vol. Tu3B.4, pp. 1 - 3, March, 2018 | BibTex
  • R. Soeiro, T. M. F. Alves, A. Cartaxo, On the probability density function of inter-core crosstalk power in birefringent homogeneous multi-core fibers, INSTICC International Conf. on Photonics, Optics and Laser Technology - PHOTOPTICS, Funchal, Portugal, Vol., pp. -, January, 2018 | BibTex
  • B.R. Pinheiro, J. Rebola, A. Cartaxo, Impact of Inter-Core Crosstalk on the Performance of Multi-core Fibers-based SDM Systems with Coherent Detection, INSTICC International Conf. on Photonics, Optics and Laser Technology - PHOTOPTICS, Funchal, Portugal, Vol., pp. -, January, 2018,
    | Abstract
    | Full text (PDF 456 KBs) | BibTex
  • T. M. F. Alves, A. Cartaxo, Characterization of ICXT in DD-OFDM MCF-based Systems, European Conference on Optical Communication ECOC, Gothenburg, Sweden, Vol. P2.SC6.29, pp. 1 - 3, September, 2017 | BibTex
  • A. Cartaxo, T. M. F. Alves, B. J. Puttnam, R.S. Luis, Y. Awaji, N. Wada, DD-OFDM Multicore Fiber Systems Impaired by Intercore Crosstalk and Laser Phase Noise, International Conf. on Transparent Optical Networks - ICTON, Girona, Spain, Vol., pp. -, July, 2017,
    | Abstract
    | BibTex
  • T. M. F. Alves, A. Cartaxo, R.S. Luis, B. J. Puttnam, Y. Awaji, N. Wada, Adaptive loading with extended memory to relax the impact of the phase noise-impaired ICXT in DD-OFDM MCF-based systems, International Conf. on Transparent Optical Networks - ICTON, Girona, Spain, Vol. Tu.D1.2, pp. 1 - 5, July, 2017 | BibTex
  • T. M. F. Alves, A. Cartaxo, B. J. Puttnam, R.S. Luis, Y. Awaji, N. Wada, Adaptive modulation-enabled DD-OFDM multicore fiber transmission impaired by intercore crosstalk, Optoelectronics and Communications Conf. - OECC, singapore, Singapore, Vol. -, pp. 1 - 3, July, 2017 | BibTex
  • A. Cartaxo, T. M. F. Alves, Analytical Model of Inter-core Crosstalk of Real Homogeneous Multi-core Fibers, IEEE Photonics Conference, Waikoloa, United States, Vol. --, pp. -- - --, October, 2016 | BibTex
  • T. M. F. Alves, A. Cartaxo, Theoretical modelling of random time nature of inter-core crosstalk in multicore fibers, International Photonics Conference - IPC, Waikoloa, United States, Vol. Wb2.4, pp. 1 - 2, October, 2016 | BibTex
  • J. Galvé, I. Gasulla, S. Sales, T. M. F. Alves, A. Cartaxo, J. C. Capmany, Experimental evaluation of RF crosstalk in multicore fibers for radio over fiber applications, European Conf. on Optical Communications - ECOC, Dusseldorf, Germany, Vol. -, pp. 1 - 3, September, 2016 | BibTex