Corporate News
Prysmian S.p.A. and Relativity Networks Collaborate on Next‑Generation Hollow‑Core Fibre Cable
Prysmian S.p.A., the world‑leading fibre‑wire and cable manufacturer, has entered into a strategic partnership with Relativity Networks to develop and produce a new high‑density hollow‑core fibre cable. The resulting 10‑millimetre cable incorporates 24 individual fibres and represents the most compact configuration ever delivered by Prysmian. During testing with Dura‑Line, the cable was successfully installed in standard microducts, demonstrating that the design can be deployed within existing infrastructure without the need for specialised ducts.
The cable is a core component of Relativity Networks’ ChronoCore technology, which is positioned as a low‑latency, high‑bandwidth solution for connecting AI data centres that are increasingly geographically dispersed. Prysmian’s role in the development and manufacturing of the cable underscores its capacity to enable advanced optical networks that meet the stringent performance requirements of modern distributed computing.
A related development occurred when Relativity Networks secured a substantial order from a leading hyperscaler after a trial that linked two data centres using the new hollow‑core cable. The order, together with a recent investment round that exceeded its target, highlights a growing market appetite for the type of optical technology that Prysmian is helping to supply.
The partnership illustrates Prysmian’s continued focus on innovation in fibre‑optic technology and its ability to collaborate with technology firms to deliver specialised solutions. It also signals that the company remains a key player in the infrastructure required to support the expanding needs of AI and data‑driven services worldwide.
Technical Analysis
Manufacturing Processes and Productivity Metrics
The production of a 10‑mm diameter, 24‑core hollow‑core fibre cable demands precision alignment of multiple preforms, controlled heat‑treatment schedules, and meticulous tension management during drawing. Prysmian’s use of a co‑drawing furnace with real‑time optical monitoring allows for sub‑micron positioning accuracy, reducing the incidence of fibre breakage and ensuring that the final cable meets strict attenuation and dispersion specifications.
Productivity gains are evident from the reduction in core diameter relative to Prysmian’s previous best‑in‑class cables. A smaller cross‑section translates into lower material consumption per kilometre, thereby decreasing raw‑material costs and shortening the overall lead time. In addition, the ability to install the cable in standard microducts eliminates the need for duct‑upgrades, further accelerating deployment and lowering project capital expenditures.
Technological Innovation in Heavy Industry
The hollow‑core design leverages a central void to reduce core density, which in turn minimizes chromatic dispersion and improves signal integrity over long distances. The technology also enables the use of lower‑loss, higher‑index contrast fibres without compromising mechanical robustness. From an industrial perspective, the integration of these optical fibres into heavy‑industry power and telecom infrastructure represents a significant leap in performance, allowing for higher data throughput with reduced latency—an essential requirement for AI‑driven workloads.
Capital Investment Trends and Economic Drivers
Capital expenditure (CapEx) in the telecommunications sector has been on the rise, driven by the need to support AI and edge‑computing workloads. The demand for high‑bandwidth, low‑latency links is prompting operators to invest in advanced optical solutions like the Prysmian/Relativity cable. Economic factors influencing these decisions include:
- Cost of Ownership (CoO) – Reduced material usage and simplified installation lower both initial CapEx and ongoing operational expenditures.
- Regulatory Incentives – Governments worldwide are offering subsidies for fibre‑optic deployments to support digital economies, which encourages investment in innovative cable technologies.
- Infrastructure Modernisation – Legacy copper networks are increasingly being replaced by optical backbones; the compactness of the new cable aligns with space constraints in urban core sites, making it attractive for retrofit projects.
Supply Chain Impacts
The introduction of a highly compact, high‑capacity cable places new demands on the supply chain. Key raw materials—such as high‑purity silica precursors, specialty polymers, and copper for sheathing—must be sourced with stringent quality controls. Prysmian’s established supplier network mitigates risk, but the need for consistent supply of advanced materials could lead to tighter lead times and higher prices if demand outpaces production capacity. Furthermore, the integration of the cable into existing microduct systems necessitates coordination with duct manufacturers, ensuring compatibility and avoiding bottlenecks during deployment.
Regulatory Changes
Regulatory frameworks around data‑centre construction and fibre‑optic deployment are evolving to address security, privacy, and resilience. In particular, the European Union’s Digital Services Act and the U.S. Federal Communications Commission’s (FCC) spectrum allocation policies are influencing how quickly new optical assets can be commissioned. Compliance with these regulations requires robust testing, traceability, and adherence to stringent environmental standards—factors that Prysmian’s manufacturing processes are already designed to meet.
Infrastructure Spending Outlook
Infrastructure spending is expected to accelerate over the next decade, driven by the exponential growth of data traffic and the proliferation of AI workloads. The compact, high‑performance cable produced by Prysmian and Relativity Networks positions them well to capture a share of this market. As operators seek to minimise installation footprints while maximising bandwidth, the adoption of hollow‑core technologies is likely to become a standard component of future fibre‑optic infrastructure projects.
In summary, the Prysmian–Relativity collaboration exemplifies how advanced manufacturing techniques, coupled with strategic capital investment and a keen awareness of regulatory and supply‑chain dynamics, can deliver transformative solutions for the AI‑centric digital economy.
