London, UK, 17 February 2022 – Colt Technology Services today became the first provider to deploy 800G technology in the L-band across a terrestrial network. This was attained using Ciena’s Reconfigurable Line System (RLS), WaveLogic 5 Extreme coherent optics, and Manage, Control and Plan (MCP) domain controller. This makes Colt the first service provider to offer proven 100G/400G Wave services using industry-leading coherent technology across both C+L bands, enabling double the data transport capacity offered by a single fibre pair.