400-Gb/s DMT-SDM transmission based on membrane DML-array-on-silicon

Nikolaos Panteleimon Diamantopoulos, Kota Shikama, Hidetaka Nishi, Takuro Fujii, Toshiki Kishi, Koji Takeda, Yoshiteru Abe, Takashi Matsui, Takaaki Kakitsuka, Hiroshi Fukuda, Kazuhide Nakajima, Shinji Matsuo

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We report on space-division multiplexing (SDM) transmissions of up to 400 Gb/s over a homogeneous four-core fiber using discrete multitone (DMT) modulation for intra-datacenter applications and 200/400 GbE links. The transmission system is enabled by a compact, SDM-channel scalable, multi-core fiber (MCF) pluggable, and energy-efficient SDM transmitter composed of a 4-channel 1.3-μm membrane directly modulated laser (DML) array-on-silicon integrated with a fiber-bundle type fan-in with loss of less than 1 dB and negligible optical and electrical crosstalk (XT). By simultaneously modulating all four lasers, 200-Gb/s (50-Gb/s/channel) and 400-Gb/s (100-Gb/s/channel) are achieved over a 425-m MCF link for KP4 and soft-decision forward error correction, respectively, with a power reduction of ∼6× compared with conventional DML transmitters. Additionally, numerical simulations based on a detailed rate-equations model predict the feasibility of the system for MCF transmissions up to 10 km even with moderate levels of XT.

Original languageEnglish
Article number8570776
Pages (from-to)1805-1812
Number of pages8
JournalJournal of Lightwave Technology
Volume37
Issue number8
DOIs
Publication statusPublished - 2019 Apr 15
Externally publishedYes

Keywords

  • Directly modulated laser on silicon
  • discrete multi-tone
  • space-division multiplexing

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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  • Cite this

    Diamantopoulos, N. P., Shikama, K., Nishi, H., Fujii, T., Kishi, T., Takeda, K., Abe, Y., Matsui, T., Kakitsuka, T., Fukuda, H., Nakajima, K., & Matsuo, S. (2019). 400-Gb/s DMT-SDM transmission based on membrane DML-array-on-silicon. Journal of Lightwave Technology, 37(8), 1805-1812. [8570776]. https://doi.org/10.1109/JLT.2018.2885792