Coriant, a vendor of SDN-enabled transport networking solutions, said TeliaSonera International Carrier completed a field trial showing flexi-rate technology that supports the dynamic provisioning of optical transmission speeds up to 400G per channel.
“This 400G field trial is all about ensuring the flexibility at all layers of the network, and especially in the underlying high-capacity transport infrastructure required for delivering the best performance connectivity for our customers and their end-users,” said Mattias Fridstrom, vice president and head of Technology, TeliaSonera International Carrier.
Coriant and TeliaSonera International Carrier conducted the TSIC field trial over multiple spans across a 1,634 kilometer fiber optic route between Paris, Luxembourg, and Frankfurt. The trial featured the transmission of three different software-programmable modulation formats – QPSK, 8QAM, and 16QAM – over the complete distance of 1,634 kilometers each.
The trial also featured a variety of line-side transmission speeds (100G, 200G, 300G, 400G) in a mix of capacity and reach application test scenarios. The link represented a popular network scenario, being based purely on Standard Single-Mode Fiber (SSMF) and EDFA-only amplification, said Coriant in a statement.
The trial was implemented on TSIC’s existing CorianthiT 7300 Multi-Haul Transport Platforms. The 400G flexi-rate trial used new Coriant CloudWave Optics, a suite of software-programmable photonic layer technologies.
Coriant CloudWave Optics is designed for cost-effective integration across Coriant’s portfolio of packet optical transport platforms, including the Coriant hiT 7300 Multi-Haul Transport Platform and the CoriantmTera Universal Transport Platform, among others. The company said CloudWave-powered flexi-rate transmission enables network operators to achieve the highest degree of optical performance at the lowest cost per bit.
Cost-optimized capacity, reach and service performance based on a combination of flexi-rate and super-channel features with dynamically adjustable modulation formats (e.g., QPSK, 8QAM, 16QAM), flexible bit rate transmission options (100G, 200G, 300G, 400G), and RAMAN with up to 25.6Tb/s per fiber in meshed optical networks are the main features.
Coriant claims that it also offers lower total cost of ownership via power and space efficiency, spectral efficiency of up to 33 percent, fiber capacity of up to 166 percent, and reduced sparing requirements.