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Project: Digital Compensation of Inter Crosstalk in Multicore Fibers

Acronym: DigCORE
Main Objective:
The ultimate goal of the project comprises the development, implementation and experimental validation of low-complexity data-center-network-compatible digital mitigation techniques for effective reduction of the outage constraints imposed by inter-core crosstalk (ICXT) in weakly-coupled MCF-based systems.
Reference: UIDP/50008/2020
Funding: IT/LA
Start Date: 01-05-2020
End Date: 30-04-2023
Team: Nelson de Jesus Cordeiro Muga, Adolfo da Visitação Tregeira Cartaxo, Armando Humberto Moreira Nolasco Pinto, Tiago Manuel Ferreira Alves, Gil Gonçalo Martins Fernandes, Isiaka Ajewale Alimi, Somayeh Ziaie, Patel RomilKumar Kantibhai, Daniel Filipe Figueiredo Pereira
Groups: Optical Quantum Communications – Av, Optical Communication Systems and Networking – Lx
Partners: non applicable
Local Coordinator: Nelson de Jesus Cordeiro Muga
Links: https://digcore.av.it.pt/

Associated Publications
  • 13Papers in Journals
  • R. K. Patel, G. Domingues, N. J. Muga, A. N. Pinto, M. Fernandes, G. Fernandes, P. Monteiro, F. P. Guiomar, Simplified Self-Coherent FSO Transmission Boosted by Digital Resolution Enhancer, Journal of Lightwave Technology, Vol. 41, No. 18, pp. 5958 - 5965, September, 2023 | Full text (PDF 1 MB) | BibTex
  • T. M. F. Alves, A. Cartaxo, Polarization Misalignment Between Signal and Crosstalk in Direct Detection WC-MCF Systems, IEEE Photonics Technology Letters, Vol. 35, No. 14, pp. 753 - 756, July, 2023 | BibTex
  • D. Piedade, T. M. F. Alves, T. Brandão, Short-Reach MCF-Based Systems Employing KK Receivers and Feedforward Neural Networks for ICXT Mitigation, Photonics, Vol. 9, No. 5, pp. 286 - 286, April, 2022 | BibTex
  • T. M. F. Alves, A. Cartaxo, J. Rebola, DD-OOK Multicore Fiber Systems Impaired by Intercore Crosstalk and Laser Phase Noise, Journal of Lightwave Technology, Vol. 40, No. 5, pp. 1544 - 1551, February, 2022,
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  • C. M. Martins, F. P. Guiomar, A. N. Pinto, Hardware optimization of dual-stage carrier-phase recovery for coherent optical receivers, OSA Continuum, Vol. 4, No. 12, pp. 3157 - 3157, December, 2021,
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  • I. Alimi, R. K. Patel, N. J. Muga, A. N. Pinto, A. Teixeira, P. Monteiro, Towards Enhanced Mobile Broadband Communications: A Tutorial on Enabling Technologies, Design Considerations, and Prospects of 5G and beyond Fixed Wireless Access Networks, Applied Sciences, Vol. 11, No. 21, pp. 1 - 104, November, 2021,
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    | Full text (PDF 26 MBs) | BibTex
  • I. Alimi, R. K. Patel, N. A. Silva, C. Sun, H. Ji, W. Shieh, A. N. Pinto, N. J. Muga, A Review of Self-Coherent Optical Transceivers: Fundamental Issues, Recent Advances, and Research Directions, Applied Sciences, Vol. 11, No. 16, pp. 1 - 86, August, 2021,
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  • M. J. Ferreira, N. A. Silva, A. N. Pinto, N. J. Muga, Characterization of a Quantum Random Number Generator Based on Vacuum Fluctuations, Applied Sciences, Vol. 11, No. 16, pp. 7413-1 - 7413-16, August, 2021,
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  • J. Morgado, A. Cartaxo, Correlation and Power Distribution of Intercore Crosstalk Field Components of Polarization-Coupled Weakly Coupled Single-Mode Multicore Fibres, Photonics, Vol. 8, No. 6, pp. 191 - 191, May, 2021 | Full text (PDF 2 MBs) | BibTex
  • A. Cartaxo, J. Morgado, New Expression for Evaluating the Mean Crosstalk Power in Weakly-Coupled Multi-Core Fibers, Journal of Lightwave Technology, Vol. 39, No. 6, pp. 1830 - 1842, March, 2021,
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  • J. Rebola, T. M. F. Alves, A. Cartaxo, Outage Probability Due to Intercore Crosstalk From Multiple Cores in Short-Reach Networks, IEEE Photonics Technology Letters, Vol. 33, No. 6, pp. 281 - 284, March, 2021 | Full text (PDF 1015 KBs) | BibTex
  • R. Dias, J. Rebola, A. Cartaxo, Outage Probability Due to Crosstalk from Multiple Interfering Cores in PAM4 Inter-Datacenter Connections, Photonics, Vol. 8, No. 1, pp. 9 - 9, January, 2021,
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  • I. Alimi, N. J. Muga, Simple and robust transmit diversity based free-space optical communications for 5G and beyond networks, Optics Communications, Vol. 476, No. 1, pp. 126306 - 126306, December, 2020 | BibTex
  • 11Papers in Conferences
  • T. M. F. Alves, L. O. Oliveira, A. Cartaxo, Neural Network-Assisted Self-Coherent MCF Systems Impaired by ICXT and Laser Phase Noise, International Conference of Transparent Optical Network (ICTON), bari, Italy, Vol., pp. -, July, 2024 | BibTex
  • T. M. F. Alves, D. Piedade, T. Brandão, J. Rebola, A. Cartaxo, On the use of feedforward neural networks to improve the intercore crosstalk tolerance in self-coherent MCF systems, International Conference of Transparent Optical Network (ICTON), Bucharest, Romania, Vol. -, pp. - - -, July, 2023 | BibTex
  • N. J. Muga, T. M. F. Alves, R. K. Patel, I. Alimi, A. N. Pinto, A. Cartaxo, Self-Coherent Detection in Multicore Fiber Systems Impaired by Intercore Crosstalk, International Conf. on Transparent Networks – ICTON, Bucarest, Romania, July, 2023 | Full text (PDF 432 KBs) | BibTex
  • A. Cartaxo, T. M. F. Alves, J. Rebola, ICXT Characterization in WC-MCFs and its Impact on the Performance of OOK-DD Systems, 13th IEEE/IET International Symposium on Communication Systems, Networks and Digital Signal Processing CSNDSP, Porto, Portugal, Vol., pp. -, July, 2022,
    | Abstract
    | Full text (PDF 542 KBs) | BibTex
  • G. Domingues, R. K. Patel, N. J. Muga, A. N. Pinto, Improved Carrier Contribution Factor Estimation in Self-COherent Detection, Iberic Meeting of Optics Students IMOS, Aveiro, Portugal, June, 2022 | BibTex
  • T. M. F. Alves, A. Cartaxo, J. Rebola, Intercore Crosstalk in Direct-Detection Weaky-Coupled Multicore Fiber Systems, International Symposium on Extremely Advanced Transmission Technologies EXAT, virtual, Japan, November, 2021 | BibTex
  • R. K. Patel, F. P. Guiomar, M. Fernandes, I. Alimi, P. Monteiro, N. J. Muga, A. N. Pinto, Virtual Carrier Assisted Self-Coherent Detection Employing DC-Value Method, OSA Optical Fiber Communications - OFC, San Francisco, United States, June, 2021 | BibTex
  • T. M. F. Alves, J. Rebola, A. Cartaxo, Weakly-Coupled MCF Direct-Detection OOK Systems Impaired by Laser Phase Noise, OSA Optical Fiber Communications - OFC, online, United States, June, 2021 | BibTex
  • R. Dias, J. Rebola, A. Cartaxo, Performance Analysis of PAM4 Signal Transmission in Inter-datacenter Multicore Fiber Links Impaired by Inter-Core Crosstalk, INSTICC International Conf. on Photonics, Optics and Laser Technology - PHOTOPTICS, Conference online, February, 2021,
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  • T. Marques, T. M. F. Alves, A. Cartaxo, Short-reach 200 Gb/s SDM Network Employing Direct-detection and Optical SSBI Mitigation, INSTICC International Conf. on Photonics, Optics and Laser Technology - PHOTOPTICS, -, Portugal, Vol., pp. 122 - 130, February, 2021 | BibTex
  • N. J. Muga, R. K. Patel, I. Alimi, N. A. Silva, A. N. Pinto, DSP optimization for simplified coherent receivers, International Conference of Transparent Optical Network (ICTON), Bari, Italy, Vol. 1, pp. 1 - 4, July, 2020,
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  • 8Theses
  • Optoelectronics Polarization Control for Quantum Technologies, Universidade de Aveiro, MSc Student, Sara Tamara Mantey, Supervisor: N. J. Muga, Co-supervisor: N. A. Silva, set-2019 - fev-2021
  • Quantum-Noise Based True Random Number Generation, Universidade de Aveiro, MSc Student, Maurício de Jesus Ferreira, Supervisor: N. J. Muga, Co-supervisor: N. A. Silva, set-2020 - dez-2021
  • Low-Cost Coherent Receivers for Datacenters Based in the Kramers-Kronig Relations, Universidade de Aveiro, BSc Student, Rui Abel Pinheiro Morais, Supervisor: N. J. Muga, Co-supervisor: N. A. Silva, jan-2021 - jul-2022
  • >200 Gb/s Multicore fiber-based short-reach networks employing Kramers Kronig receivers, ISCTE - Instituto Universitário de Lisboa, MSc Student, João André Calado de Oliveira, Supervisor: T. M. F. Alves, Co-supervisor: A. Cartaxo, set-2020 - out-2021
  • Laser phase noise impaired next generation short-reach networks employing MCFs and Kramers Kronig receivers, ISCTE - Instituto Universitário de Lisboa, MSc Student, Filipe Martins Saraiva, Supervisor: T. M. F. Alves, set-2020 - out-2021
  • Next generation >200 Gb/s multicore fiber short-reach networks employing machine learning, ISCTE - Instituto Universitário de Lisboa, MSc Student, Derick Augusto Évora Piedade, Supervisor: T. M. F. Alves, Co-supervisor: T. Brandão, set-2020 - set-2021
  • Simplified Coherent Transceiver for Optical Communication Networks, Universidade de Aveiro, PhD Student, Patel RomilKumar Kantibhai, Supervisor: A. N. Pinto, Co-supervisor: N. J. Muga, set-2017 - jun-2022
  • Coherent Technologies for Flexible Optical Networks, Universidade de Aveiro, PhD Student, Somayeh Ziaie, Supervisor: A. N. Pinto, Co-supervisor: N. J. Muga, jan-2014 - jul-2020