High Capacity Transmission in a Coupled-Core Three-Core Multi-Core Fiber

Georg Rademacher (Corresponding author), Ruben S. Luis, Benjamin J. Puttnam, Roland Ryf, Sjoerd van der Heide, Tobias A. Eriksson, Nicolas K. Fontaine, Haoshuo Chen, Rene Jean Essiambre, Yoshinari Awaji, Hideaki Furukawa, Naoya Wada

Research output: Contribution to journalArticleAcademicpeer-review

18 Citations (SciVal)


High-capacity, long-haul transmission over a coupled-core three-core multi-core fiber is investigated in a recirculating loop experiment. We report key system characteristics, such as the optimum launch power as well as the wavelength dependence and distance-evolution of mode-dependent loss and the impulse response time spread. We further performed two high data-rate, long-haul transmission demonstrations with more than 75 nm optical bandwidth in C- and L-bands over distances up to 4800 km. The reported data-rate of 172 Tb/s over 2040 km is the highest demonstrated in any multi-span transmission system employing optical fibers with standard cladding diameter of 125 micro-meter to date. Additionally, transmission of 81 Tb/s over 4800 km distance demonstrates the potential of using coupled-core multi-core fibers in combination with wideband optical signals over long-haul distances.

Original languageEnglish
Article number9157991
Pages (from-to)757-762
Number of pages6
JournalJournal of Lightwave Technology
Issue number3
Publication statusPublished - 1 Feb 2021


  • multi-core fibers
  • Space-division multiplexing (SDM)


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