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

Research output: Contribution to journalArticlepeer-review

194 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 Jan 16
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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