305 Tb/s space division multiplexed transmission using homogeneous 19-core fiber

Jun Sakaguchi*, Benjamin J. Puttnam, Werner Klaus, Yoshinari Awaji, Naoya Wada, Atsushi Kanno, Tetsuya Kawanishi, Katsunori Imamura, Harumi Inaba, Kazunori Mukasa, Ryuichi Sugizaki, Tetsuya Kobayashi, Masayuki Watanabe

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

233 Citations (Scopus)


We report record capacity data transmission at 305 Tb/s over 10.1 km, using space division multiplexing (SDM)with 19 channels. To realize such a large SDM channel number, we fabricated a trench-assisted homogeneous 19-core fiber with average intercore crosstalk of about dB at 1550 nm.We also fabricated a 19-channel SDM multiplexer/demultiplexer using free-space optics with low insertion losses and low additional crosstalk. The data signal transmitted through each SDMchannel was 100 wavelength division multiplexing (100 GHz spacing) 2 86 Gb/s polarizationdivision-multiplexed quadrature phase shift keying signals and the spectral efficiency was 30.5 b/s/Hz.

Original languageEnglish
Article number6296671
Pages (from-to)554-562
Number of pages9
JournalJournal of Lightwave Technology
Issue number4
Publication statusPublished - 2013
Externally publishedYes


  • Coherent communications
  • fiber optics
  • multicore fiber (MCF)
  • quadrature phase shift keying (QPSK)
  • space division multiplexing (SDM)
  • wavelength division multiplexing (WDM)

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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