Introduction

Colt Technology Services has completed its first live test of Multi-Core Fibre (MCF) technology which shows potential for future optical transport networks in the London metro system. This test which Colt performed with its major partners marks the company as one of the first organizations in the world to evaluate this next-generation fiber technology under actual field conditions.

What Is Multi-Core Fibre?

Multi-Core Fibre is a next-generation technology that enables multiple data streams to transmit through multiple optical fibre cores. MCF enables higher bandwidth transmission through a single cable system which exceeds the capacity of traditional single-mode fibre that transmits one light path. The system works effectively because it meets the demands of urban environments where space and budget restrictions create difficulties for installing new cabling systems.

The Trial Details

The trial was conducted with optical and networking partners Sterlite Technologies Limited (STL), Ciena, and Nokia. The testing occurred throughout Colt's metro network which connected two Points of Presence (PoPs) that were situated 9 kilometers and 63 kilometers apart.

 

• The main findings showed that the system operated at a line rate of 800 Gbps.

 

• The validation process confirmed the ability to deliver 100GE and 400GE services.

 

• The evaluation involved complete tests which assessed dispersion, crosstalk, throughput, fault behavior, and optical loss.

The performance assessments succeeded in meeting operational standards which enabled the technology to be used for upcoming high-speed network deployments.

Why This Matters

The networks require increased capacity because global data traffic keeps growing and applications require more bandwidth for AI computing and cloud services and video streaming. MCF provides a method to extend network capacity through existing infrastructure, which results in reduced operational expenses and time savings.

The solution supports sustainability objectives because it decreases requirements for new construction projects that consume substantial resources.

Industry Collaboration and Future Use

The trial highlights collaboration among key industry players. STL’s Multiverse 4-core fibre operates at the same size as standard fibre, which makes it easier to connect with current systems.

Colt and STL leaders explained that the trial proves their system can meet actual operational demands while showing how operators will construct networks to manage rising traffic.

What’s Next

Colt has not yet established a commercial launch date for Multi-Core Fibre although this trial result demonstrates a significant advancement toward wider network expansion in areas with highest growth demands.

  The technology of MCF will become essential for future optical networks because operators and hyperscalers plan to adopt it as a method for expanding network capacity while controlling operational expenses and environmental impact.