Softbank Maruyama CLS

Alcatel Submarine Networks (ASN) has introduced an innovative design approach, SDM1 by ASN, Spatial Division Multiplexing, optimizing cost per bit. This disruptive solution is an alternative to the traditional design philosophy status quo. The SDM1 by ASN is revolutionizing the traditional submarine network design: "High power, High OSNR, High Effective Area (Aeff) fibre" by using "Low Power, Low OSNR, Low Aeff Fibre and more fibre pairs".

SDM1 by ASN is a smart combination of:

  • New product features including repeater pumping schemes and higher fiber counts submarine cable designs.
  • Proven and widely used fiber technologies.
  • Optimized electrical dimensioning resulting in a smaller cable conductor.
  • Optimum spectral efficiency range (2-3 b/s/Hz) with lower chromatic dispersion compensation

The SDM1 powered by ASN is revolutionizing the traditional submarine network design: "High power, High OSNR, High Effective Area (Aeff) fibre" by using "Low Power, Low OSNR, Low Aeff Fibre and more fibre pairs" in order to:

  • Push the limits of theoretical design capacity by minimizing nonlinear effects that add complexity and cost
  • Create and efficient optical and electrical network based on repeater pump farming, low Aeff submarine fibres, and higher fibre counts
  • Work in the optimum spectral efficiency of SLTE : 2-3 b/s/Hz and lower chromatic dispersion compensation

Google's new private Equiano subsea cable connecting Europe and Africa will deploy ASN's Spatial Division Multiplexing (SDM) technology and optical switching at the fibre-pair level.

SDM1 by ASN
SDM1 by ASN,    Source: ASN