Multi-dimensional coded modulation for Maximizing NonLinear CAPacity in the Optical Channel

Project: Research direct

Project Details


The capacity of the current infrastructure can be unlocked by addressing the challenging aspects of the nonlinear Kerr effect in optical fibres. The Multi-dimensional Coded Modulation for Maximizing NonLinear CAPacity in the Optical Channel (NLCAP) project proposal will address flexibility in the optical transmission links leveraging the concept of Multi-dimensional (MD) modulation formats, which will be optimized to increase spectral efficiency. In addition, considering the nonlinear regime, novel MD formats will be developed to maximize performance enabling the transponder to be tuned according to transmission distance and required transmission performance. These MD constellations will be designed based on geometric shaping, which will be adapted to variable channel conditions, thereby supporting flexible grid, flexible rates and hence, flexible distances in the nonlinear regime.

In this project, we will optimize the coded modulation system to approach this capacity limit. For example, the following animation shows an optimized 2D constellation formats, which are designed to maximize the achieve information rate (AIR) for different SNR channel conditions.
Effective start/end date1/06/1731/03/19

Research Output

  • 7 Article
  • 1 Conference contribution
  • 1 Conference article

11,700 km Transmission at 4.8 bit/4D-sym via four-dimensional geometrically-shaped polarization-ring-switching modulation

Heide, S. V. D., Chen, B., Hout, M. V. D., Liga, G., Koonen, T., Hafermann, H., Alvarado, A. & Okonkwo, C., 29 Apr 2019, In : arXiv. 3 p., 1904.12561 .

Research output: Contribution to journalConference articleAcademic

Open Access
  • Eight-dimensional polarization-ring-switching modulation formats

    Chen, B., Okonkwo, C., Hafermann, H. & Alvarado, A., 1 Nov 2019, In : IEEE Photonics Technology Letters. 31, 21, p. 1717-1720 4 p., 8847645.

    Research output: Contribution to journalArticleAcademicpeer-review

    Open Access
  • 12 Downloads (Pure)

    Experimental demonstration of eight-dimensional modulation formats for long-haul optical transmission

    van der Heide, S., Chen, B., van den Hout, M., Hafermann, H., Koonen, T., Alvarado, A. & Okonkwo, C., 2 Jul 2019, In : arXiv. 1901.01529, 4 p.

    Research output: Contribution to journalArticleAcademic

    Open Access
  • Prizes

    Optoelectronics and Communications Conference (OECC 2019) Best Paper Award

    Sjoerd van der Heide (Recipient), Bin Chen (Recipient), M. van den Hout (Recipient), Gabriele Liga (Recipient), Ton Koonen (Recipient), Hartmut Hafermann (Recipient), Alex Alvarado (Recipient) & Chigo Okonkwo (Recipient), Jul 2019

    Prize: OtherCareer, activity or publication related prizes (lifetime, best paper, poster etc.)Scientific