138-Tbt/s mode- and wavelength-multiplexed transmission over six-Mode graded-index fiber

J.J.A. van Weerdenburg, R. Ryf, J.C. Alvarado-Zacarias, R.A. Alvarez-Aguirre, N.K. Fontaine, H. Chen, R. Amezcua Correa, Y. Sun, L. Gruner-Nielsen, R.V. Jensen, R. Lingle, A.M.J. Koonen, C.M. Okonkwo

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We report on the multiplexing of 12 spatial and polarization channels and 120 wavelength channels in the C -band, each carrying 16 quadratic-amplitude modulation symbols at 30 GBd over graded-index few-mode fiber. A combination of multiple fiber spools with positive and negative modal dispersion values is exploited to form a 59-km link with 0.35-ns differential mode group delay. The link is placed inside a sixfold synchronized recirculating loop transmission setup. Photonic lanterns with low insertion and mode-dependent loss are employed to excite the six spatial modes in the few-mode fiber. A net transmission rate of 138 Tb/s at a spectral efficiency of 34.91 b/s/Hz over 590 km is demonstrated.

Original languageEnglish
Article number8252699
Pages (from-to)1369-1374
Number of pages6
JournalJournal of Lightwave Technology
Issue number6
Publication statusPublished - 15 Mar 2018


  • Delays
  • Dispersion
  • Insertion loss
  • Multiplexing
  • Optical fiber communication
  • Optical losses
  • Photonics
  • Propagation losses
  • Space division multiplexing
  • Wavelength division multiplexing
  • wavelength division multiplexing
  • space division multiplexing


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