• Technical Conference:  24 – 28 March 2024
  • Exhibition: 26 – 28 March 2024
  • San Diego Convention Center, San Diego, California, USA

Revolutionary vs. Evolutionary SDM Fibers: Extra Gain at Extra Complexity?

Sunday, 05 March, 16:00 – 18:30

Room 6C


Rising network traffic, driven by consumer bandwidth demand, creates a capacity challenge for networks of all types. The search for scalable capacity has become a driving force in network systems. Space Division Multiplexing (SDM) is a viable approach as it increases the relative core density in a given system. In data center applications, it could solve practical installation problems of very large fiber counts in data center interconnect (DCI) links. In a submarine, it offers a path towards 1-5 Pb/s subsea cable capacity. The latter presents the ultimate challenge due to high-reliability requirements and power-limited cable designs on top of the high-capacity transmission. The debate will therefore focus on which technology will emerge to meet challenging 5 Pbps cable capacity targets in submarine. Scalability, ecosystem readiness, compatibility with incumbent systems, and mechanical robustness are among the factors to be addressed for two leading solutions: multicore (MCF) and reduced geometry (Cladding or Coating) fibers.


Tetsuya Hayashi, Sumitomo Electric Industries Ltd , Japan

Inna Kozmina, Corning, USA

Pierre Sillard, Prysmian Group, France

Benyuan Zhu, OFS Laboratories, USA


Mattia Cantono, Google, USA

Olivier Courtois, Alcatel Submarine Networks, France

Hans Damdgaard, OFS Labs, Denmark

Lidia Galdino, Corning Incorporated, UnitedKingdom

Stephen Grubb, Meta, USA

Takemi Hasegawa, Sumitomo Electric Industries, Japan

Takanori Inoue, NEC Laboratories, Japan

Victor Kopp, Chiral Photonics, USA

Alexei Pilipetskii, SubCom LLC, USA

Shigehiro Takasaka, Furukawa Electric Co., Japan