As the demand for higher-capacity transport networks continues to rise, network operators need to increase the speed per wavelength in their existing networks. It will help operators get the most out of their investments, as laying additional fiber lines to meet the capacity demand is a costly option.
The move to 400G is the next step in the optical transport deployments, following the current 10/40/100G networks. Re-use of existing fiber for the evolution to higher-capacity networks will protect operators’ investments, while providing higher data speeds for end users.
Nokia Siemens Networks conducted the trial at its research and development center in Munich using its prototype equipment.