Rate and Power Scaling of Space-Division Multiplexing Via Nonlinear Perturbation

Francisco Javier Garcia-Gomez, Gerhard Kramer

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


A nonlinear perturbation model for fiber-optic channels is used to analyze achievable rates of combined space-division multiplexing (SDM) and wavelength-division multiplexing (WDM). The analysis shows that, for a large number S of SDM channels, the power of the nonlinear interference is at most quadratic in S. The achievable rates scale at least as the cubic root of S and linearly with the optimized launch power for large S. The expressions are verified numerically for systems with up to 16 SDM channels and 5 WDM channels.

Original languageEnglish
Pages (from-to)5077-5082
Number of pages6
JournalJournal of Lightwave Technology
Issue number15
StatePublished - 1 Aug 2022


  • Achievable rate
  • optical fiber
  • regular perturbation
  • space-division multiplexing


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