HUBER+Suhner’s latest move with Microsoft is more than a manufacturing update; it is a signal that hollow core fibre is crossing another threshold from lab curiosity to industrial infrastructure. The Swiss connectivity specialist says it is investing further in production to accelerate rollout of Hollow Core Fiber cable and connectivity solutions for Microsoft Azure, with the partners already shipping live deployments and now working on higher-capacity variants for broader cloud and AI expansion. For Windows and Azure watchers, the key takeaway is simple: Microsoft’s network strategy is no longer just about more fibre, but about better fibre.
That acquisition mattered because HCF, unlike conventional silica fibre, guides light through an air core. Microsoft’s own explanation has consistently emphasized the potential for lower latency, reduced nonlinear effects, and the ability to transmit signals faster than in standard glass fibre. In its acquisition announcement, Microsoft described HCF as capable of enabling faster, more reliable networking for enterprise and large-scale organizations.
The next phase was always going to be industrialization. Research breakthroughs are one thing; building a supply chain, qualifying cables, and getting field-deployable connectivity into data centres and metro links is quite another. HUBER+SUHNER’s 2026 announcement shows that the work has moved firmly into manufacturing scale-up, with production already established in Herisau, Switzerland, and connector manufacturing at Cube Optics in Mainz, Germany.
Microsoft has also been increasingly public about HCF’s maturity. In March 2025, the company said it was deploying hollow core fibre in Azure’s network and called out a metro data centre interconnection deployment larger than any other HCF rollout to date. Microsoft framed that deployment as proof that HCF could be reliable enough for production use, not just a promising research platform.
What makes the current news significant is timing. Cloud providers are still spending heavily on AI infrastructure, and the networking layer is now one of the bottlenecks that determines how quickly data centres can scale. Microsoft’s own research papers in 2025 highlighted the practical upside of HCF, including ultra-low latency, low loss, and long unrepeated transmission spans. That makes the technology strategically important far beyond a single supplier relationship.
Microsoft appears to be treating HCF as a network architecture decision rather than a niche materials experiment. That distinction matters because architecture decisions shape procurement, regional rollout plans, and partner ecosystems.
This is not merely about one cable type. It is about an end-to-end ecosystem that includes outside plant (OSP) and inside plant (ISP) cables, ruggedized deployments, and mode-converting connectors designed for hyperscale and metro-optical environments. HUBER+SUHNER says these solutions are already qualified for field deployment and in some cases already in series production.
The company’s role is also instructive. Microsoft acquired Lumenisity to own the core intellectual property and research expertise, but it still needs established manufacturing partners to turn that innovation into deployable volume. That is where HUBER+SUHNER becomes strategically important: it is helping bridge the gap between breakthrough fibre science and reliable industrial output.
The partnership also reflects a familiar hyperscaler pattern. Microsoft has been increasingly willing to verticalize parts of its infrastructure stack when it believes the technology offers durable performance advantages. The same logic can be seen in its wider AI and cloud investments, where the company has sought control over the components that most directly affect latency, reliability, and scale.
That is why the phrase qualified designs matters so much here. In networking, qualification is what turns a prototype into an asset category.
The implication is that Azure’s networking roadmap may increasingly prioritize technologies that reduce latency and simplify operations across regions. In a market where every millisecond and every capacity gain matters, that is a serious advantage.
The physics are compelling, but the operational value is subtler. HCF also has lower nonlinear impairment, which means signals can sometimes be launched at higher power without as much distortion. Microsoft’s research has tied this to lower amplification requirements and longer reaches, especially in metro-scale networks.
That matters because modern cloud networks are not simple point-to-point pipes. They are highly meshed systems with traffic moving constantly between storage, compute, and control planes. If HCF reduces the friction in those flows, Azure can potentially improve performance without simply throwing more hardware at the problem.
At the same time, the technology is not magic. Hollow core fibre still requires careful engineering around splicing, backscatter monitoring, and cable integrity. Microsoft’s 2025 research paper on unrepeated HCF transmission highlighted that a mature ecosystem must solve handling and cabling challenges before longer demonstrations become routine deployments.
It also explains why HCF is likely to spread first in premium routes where latency sensitivity is highest. Those are the places where the extra cost and complexity can be justified by business value.
In other words, the connector may be as strategically important as the fibre itself. That is often how infrastructure transitions happen: the winning standard is the one that makes the entire system easier to use.
This strategy reduces risk. Microsoft can validate performance in live environments before committing to a massive network-wide redesign. It can also tune procurement based on actual deployment experience rather than only lab data.
There is also a commercial angle. Azure customers may never know whether a given route uses HCF or conventional fibre, but they will feel the impact in service quality, latency, and resilience if the deployment works as intended. That means Microsoft can extract operational advantage without needing to market the technology directly to end users.
The company’s public language now frames HCF as part of its cloud and AI infrastructure roadmap. That framing is important because it positions fibre not as a plumbing expense, but as a competitive differentiator in the AI era. Speed, responsiveness, and network determinism are becoming platform features.
Regional deployments also help Microsoft control the rollout curve. Instead of flipping an entire network at once, it can add HCF where it makes the most architectural sense.
Microsoft has argued since the Lumenisity acquisition that HCF could benefit industries with strict latency and security requirements. That original positioning still looks right, but the AI wave has made the case more urgent.
That is a big deal in a market where optical infrastructure often struggles with fragmentation. Research groups can prove performance, but industrial suppliers turn that performance into repeatable product lines. HUBER+SUHNER appears to be positioning itself as one of the companies capable of doing both.
The company also says it is extending its HCF portfolio into fully integrated end-to-end solutions. That is an important phrase because customers generally want systems, not components. Cable plus connector plus qualification is much more valuable than a single impressive part.
For Microsoft, the value of a partner like HUBER+SUHNER is obvious. It diversifies the supply chain, reduces dependence on internal fabrication alone, and allows Azure to scale faster without overloading a single site or team.
HUBER+SUHNER seems to be betting that early scale will translate into long-term strategic relevance. If HCF becomes a standard deployment option for hyperscale networks, the company could gain a durable position in a high-value niche.
In practical terms, being associated with Microsoft’s HCF rollout could open doors elsewhere. First mover credibility matters a great deal in infrastructure markets, especially when the technology is still unfamiliar to many buyers.
Microsoft’s own messaging now ties HCF directly to cloud and AI infrastructure. That suggests the company sees the fibre layer as part of the same stack as GPUs, storage, and orchestration software. When you are trying to scale model training or distributed inference, the quality of the network can become just as important as the quality of the accelerator.
This is where the commercial story gets bigger than optics. If HCF materially improves traffic between data centre sites or across campus networks, it could help AI platforms keep pace with customer demand without proportionally increasing congestion or latency penalties.
The competitive implications are substantial. Cloud rivals are all trying to solve the same scaling challenge, and any infrastructure edge that compounds over time could matter. HCF will not be the only answer, but it may become one of the more important ones.
Microsoft’s HCF push fits that pattern neatly.
The effect is likely to be subtle but real. Infrastructure improvements are often invisible until they are missing, which is why hyperscaler networking investments tend to be underappreciated.
The question for rivals is not whether HCF is interesting. It is whether they need to build their own versions, partner for access, or wait for the technology to mature further before committing. That decision will differ based on each company’s network architecture and capital priorities.
Microsoft’s advantage is that it has combined acquisition, research, deployment, and manufacturing partnerships in one pipeline. That gives it more control than a buyer-only approach would. It also helps that the company has been unusually transparent about progress, which encourages ecosystem development.
Still, it would be a mistake to assume the market will converge on one path immediately. Conventional fibre remains dominant, and large-scale network operators tend to be cautious when infrastructure changes could affect uptime. Adoption will likely be selective, route-specific, and phased.
That is why the next few years matter so much. The companies that prove the operational case first will shape the market standard.
The key question is whether HCF follows the path of a specialized performance layer or becomes foundational in future cloud networks. Microsoft clearly wants the latter, but the market will decide based on cost, engineering complexity, and operational proof.
HUBER+SUHNER, meanwhile, gains a strategic anchor customer in a technology that could grow into a much larger market. That is a valuable position if HCF adoption accelerates across the industry.
There is also the risk of overpromising. Microsoft’s claims about speed and latency are compelling, but enterprise buyers will want proof across many workloads and environmental conditions, not just in showcase deployments.
The broader signal is still positive. Microsoft is clearly investing in the network layer as a strategic differentiator, and HUBER+SUHNER appears willing to industrialize alongside that ambition. In an AI-driven cloud market, that is a sensible bet, because better networking increasingly means better product performance.
Source: Telecompaper Huber+Suhner ramps up hollow core fibre production to meet Microsoft data centre demand
Background
The story starts years before today’s production ramp. Microsoft acquired Lumenisity in December 2022, bringing in a specialist team focused on hollow core fibre technology and tying that capability directly to Azure infrastructure. Microsoft said at the time that the acquisition would expand its ability to optimize global cloud infrastructure and serve customers with strict latency and security requirements.That acquisition mattered because HCF, unlike conventional silica fibre, guides light through an air core. Microsoft’s own explanation has consistently emphasized the potential for lower latency, reduced nonlinear effects, and the ability to transmit signals faster than in standard glass fibre. In its acquisition announcement, Microsoft described HCF as capable of enabling faster, more reliable networking for enterprise and large-scale organizations.
The next phase was always going to be industrialization. Research breakthroughs are one thing; building a supply chain, qualifying cables, and getting field-deployable connectivity into data centres and metro links is quite another. HUBER+SUHNER’s 2026 announcement shows that the work has moved firmly into manufacturing scale-up, with production already established in Herisau, Switzerland, and connector manufacturing at Cube Optics in Mainz, Germany.
Microsoft has also been increasingly public about HCF’s maturity. In March 2025, the company said it was deploying hollow core fibre in Azure’s network and called out a metro data centre interconnection deployment larger than any other HCF rollout to date. Microsoft framed that deployment as proof that HCF could be reliable enough for production use, not just a promising research platform.
What makes the current news significant is timing. Cloud providers are still spending heavily on AI infrastructure, and the networking layer is now one of the bottlenecks that determines how quickly data centres can scale. Microsoft’s own research papers in 2025 highlighted the practical upside of HCF, including ultra-low latency, low loss, and long unrepeated transmission spans. That makes the technology strategically important far beyond a single supplier relationship.
Why hollow core fibre matters now
The industry’s broader conversation has shifted from “can HCF work?” to “how fast can it be industrialized?” That is a much better problem to have, but it is also harder. Supply chain readiness, cabling, splicing, connectorization, and deployment tooling all become limiting factors once live traffic is involved.Microsoft appears to be treating HCF as a network architecture decision rather than a niche materials experiment. That distinction matters because architecture decisions shape procurement, regional rollout plans, and partner ecosystems.
- Lower latency can improve east-west traffic flows between data centres.
- Less signal impairment can reduce the need for amplification in some routes.
- Higher launch power tolerance can help in metro and long-haul designs.
- Production qualification matters as much as raw fibre performance.
Overview
At a high level, HUBER+SUHNER is now saying out loud what the market has been inferring for months: Microsoft wants HCF at scale, and it wants it faster. The company’s announcement describes a strengthening collaboration with Microsoft Azure Fiber and “further planned investments” to accelerate rollout of HCF cable and connectivity solutions for cloud and AI infrastructure.This is not merely about one cable type. It is about an end-to-end ecosystem that includes outside plant (OSP) and inside plant (ISP) cables, ruggedized deployments, and mode-converting connectors designed for hyperscale and metro-optical environments. HUBER+SUHNER says these solutions are already qualified for field deployment and in some cases already in series production.
The company’s role is also instructive. Microsoft acquired Lumenisity to own the core intellectual property and research expertise, but it still needs established manufacturing partners to turn that innovation into deployable volume. That is where HUBER+SUHNER becomes strategically important: it is helping bridge the gap between breakthrough fibre science and reliable industrial output.
The partnership also reflects a familiar hyperscaler pattern. Microsoft has been increasingly willing to verticalize parts of its infrastructure stack when it believes the technology offers durable performance advantages. The same logic can be seen in its wider AI and cloud investments, where the company has sought control over the components that most directly affect latency, reliability, and scale.
The industrialization problem
The challenge with HCF is not just physics. It is operations. The technology may promise better transmission characteristics, but operators still need cables that can be installed, handled, monitored, repaired, and standardized across a large fleet.That is why the phrase qualified designs matters so much here. In networking, qualification is what turns a prototype into an asset category.
- Manufacturing volume is now the central constraint.
- Connector ecosystem maturity affects deployment speed.
- Cable ruggedization determines whether HCF can survive real-world conditions.
- Field certification is the difference between demo and rollout.
Microsoft’s network thesis
Microsoft has been increasingly explicit that HCF is part of a broader network modernization effort. Its messaging ties the technology to cloud, AI, and metro interconnect use cases, not just academic fibre research. That suggests HCF is becoming embedded in the company’s long-term infrastructure plan rather than treated as a side project.The implication is that Azure’s networking roadmap may increasingly prioritize technologies that reduce latency and simplify operations across regions. In a market where every millisecond and every capacity gain matters, that is a serious advantage.
The technology behind HCF
The strongest argument for hollow core fibre is still the same one Microsoft has repeated for years: light travels faster through air than through glass. HUBER+SUHNER says HCF can transmit data 47% faster, and Microsoft has long argued that the practical result is lower latency across and between data centres.The physics are compelling, but the operational value is subtler. HCF also has lower nonlinear impairment, which means signals can sometimes be launched at higher power without as much distortion. Microsoft’s research has tied this to lower amplification requirements and longer reaches, especially in metro-scale networks.
That matters because modern cloud networks are not simple point-to-point pipes. They are highly meshed systems with traffic moving constantly between storage, compute, and control planes. If HCF reduces the friction in those flows, Azure can potentially improve performance without simply throwing more hardware at the problem.
At the same time, the technology is not magic. Hollow core fibre still requires careful engineering around splicing, backscatter monitoring, and cable integrity. Microsoft’s 2025 research paper on unrepeated HCF transmission highlighted that a mature ecosystem must solve handling and cabling challenges before longer demonstrations become routine deployments.
From lab advantage to production value
The jump from performance claims to production advantage depends on a chain of compromises. A lower-latency path is only useful if it can be installed at scale and maintained over time. That is why Microsoft’s partnership model matters: it blends research, manufacturing, and network operations into one workflow.It also explains why HCF is likely to spread first in premium routes where latency sensitivity is highest. Those are the places where the extra cost and complexity can be justified by business value.
- Latency-sensitive traffic benefits first.
- Metro interconnects are prime candidates.
- AI workloads raise the value of faster network fabrics.
- Operational reliability determines adoption speed.
Why connectors matter
A fibre system is only as strong as its weakest interface. HUBER+SUHNER’s focus on a patented mode-converting HCF connector is therefore a meaningful detail, not an accessory claim. Connectors shape compatibility, ease of deployment, and how quickly operators can integrate HCF into existing plant.In other words, the connector may be as strategically important as the fibre itself. That is often how infrastructure transitions happen: the winning standard is the one that makes the entire system easier to use.
Microsoft’s deployment strategy
Microsoft’s approach looks increasingly like staged commercialization. First comes acquisition of the core research capability. Then comes limited deployment in carefully selected Azure regions. Now comes the supplier ecosystem that can make broader rollout possible. That sequence is visible in the 2022 acquisition, the 2025 deployment update, and the 2026 production expansion.This strategy reduces risk. Microsoft can validate performance in live environments before committing to a massive network-wide redesign. It can also tune procurement based on actual deployment experience rather than only lab data.
There is also a commercial angle. Azure customers may never know whether a given route uses HCF or conventional fibre, but they will feel the impact in service quality, latency, and resilience if the deployment works as intended. That means Microsoft can extract operational advantage without needing to market the technology directly to end users.
The company’s public language now frames HCF as part of its cloud and AI infrastructure roadmap. That framing is important because it positions fibre not as a plumbing expense, but as a competitive differentiator in the AI era. Speed, responsiveness, and network determinism are becoming platform features.
Why Azure regions matter
Microsoft says HCF will be deployed across more Azure regions, and that matters because regional density drives network economics. The more regions that need faster internal and inter-site connectivity, the more compelling HCF becomes.Regional deployments also help Microsoft control the rollout curve. Instead of flipping an entire network at once, it can add HCF where it makes the most architectural sense.
- Selective deployment lowers operational risk.
- Regional scaling creates repeatable templates.
- Live traffic validates the technology under pressure.
- Future variants can be designed from real-world data.
Enterprise implications
For enterprise customers, the practical value is likely to show up in services that depend on low-latency data movement, high security, or heavy east-west traffic. That includes financial services, healthcare imaging, industrial workloads, and AI inference pipelines.Microsoft has argued since the Lumenisity acquisition that HCF could benefit industries with strict latency and security requirements. That original positioning still looks right, but the AI wave has made the case more urgent.
HUBER+Suhner’s manufacturing role
HUBER+SUHNER’s relevance is that it provides scale, process discipline, and global manufacturing credibility. The company says it has established special processes at its Herisau plant to integrate HCF into stranded multi-fiber loose-tube cables and is already producing connectors in Mainz.That is a big deal in a market where optical infrastructure often struggles with fragmentation. Research groups can prove performance, but industrial suppliers turn that performance into repeatable product lines. HUBER+SUHNER appears to be positioning itself as one of the companies capable of doing both.
The company also says it is extending its HCF portfolio into fully integrated end-to-end solutions. That is an important phrase because customers generally want systems, not components. Cable plus connector plus qualification is much more valuable than a single impressive part.
For Microsoft, the value of a partner like HUBER+SUHNER is obvious. It diversifies the supply chain, reduces dependence on internal fabrication alone, and allows Azure to scale faster without overloading a single site or team.
The supply-chain advantage
The HCF market is still small relative to mainstream fibre, which means the supply chain is not yet deeply commoditized. That creates both opportunity and fragility. A partner with industrial discipline can become a key enabler, but bottlenecks can still emerge quickly.HUBER+SUHNER seems to be betting that early scale will translate into long-term strategic relevance. If HCF becomes a standard deployment option for hyperscale networks, the company could gain a durable position in a high-value niche.
- Manufacturing localization improves responsiveness.
- Qualified processes reduce variation.
- Integrated product lines improve customer adoption.
- Multi-site capacity lowers single-point risk.
Competitive positioning
The partnership also elevates HUBER+SUHNER in the competitive optics landscape. It is no longer just a passive component supplier; it is part of a strategic platform program with one of the world’s biggest cloud operators. That raises the company’s profile with other hyperscalers and network builders who want similar capabilities.In practical terms, being associated with Microsoft’s HCF rollout could open doors elsewhere. First mover credibility matters a great deal in infrastructure markets, especially when the technology is still unfamiliar to many buyers.
AI infrastructure and the data centre race
The timing of this news is inseparable from the AI buildout. Data centre operators are being pushed to increase capacity, shorten internal paths, and remove friction from compute-to-compute communication. HCF becomes interesting precisely because the AI economy is turning networking into a strategic bottleneck.Microsoft’s own messaging now ties HCF directly to cloud and AI infrastructure. That suggests the company sees the fibre layer as part of the same stack as GPUs, storage, and orchestration software. When you are trying to scale model training or distributed inference, the quality of the network can become just as important as the quality of the accelerator.
This is where the commercial story gets bigger than optics. If HCF materially improves traffic between data centre sites or across campus networks, it could help AI platforms keep pace with customer demand without proportionally increasing congestion or latency penalties.
The competitive implications are substantial. Cloud rivals are all trying to solve the same scaling challenge, and any infrastructure edge that compounds over time could matter. HCF will not be the only answer, but it may become one of the more important ones.
The hyperscaler playbook
Hyperscalers tend to industrialize anything that improves reliability or unit economics. Once a technology proves itself, they move fast to secure supply, standardize deployments, and reduce dependence on market spot capacity.Microsoft’s HCF push fits that pattern neatly.
- Own the core IP where possible.
- Qualify the deployment stack for production.
- Scale suppliers to avoid bottlenecks.
- Use live traffic to refine designs.
Consumer impact is indirect
Consumers will not see a “hollow core fibre” label in Windows, Xbox, or Microsoft 365. But they may still benefit from reduced latency in cloud services, faster data movement behind the scenes, and more resilient availability in busy regions.The effect is likely to be subtle but real. Infrastructure improvements are often invisible until they are missing, which is why hyperscaler networking investments tend to be underappreciated.
The competitive landscape
Hollow core fibre is becoming one of those infrastructure technologies that can quietly reshape competition before most customers notice. Microsoft is now visibly ahead in deployment maturity, but the wider market is likely to respond as suppliers, competitors, and other hyperscalers watch performance results closely.The question for rivals is not whether HCF is interesting. It is whether they need to build their own versions, partner for access, or wait for the technology to mature further before committing. That decision will differ based on each company’s network architecture and capital priorities.
Microsoft’s advantage is that it has combined acquisition, research, deployment, and manufacturing partnerships in one pipeline. That gives it more control than a buyer-only approach would. It also helps that the company has been unusually transparent about progress, which encourages ecosystem development.
Still, it would be a mistake to assume the market will converge on one path immediately. Conventional fibre remains dominant, and large-scale network operators tend to be cautious when infrastructure changes could affect uptime. Adoption will likely be selective, route-specific, and phased.
Rivals will watch the metrics
If HCF keeps showing measurable operational benefits, competitors will have a hard time ignoring it. But the most meaningful metrics will not just be headline latency figures. They will include deployment cost, repairability, yield, and how well the technology holds up over time.That is why the next few years matter so much. The companies that prove the operational case first will shape the market standard.
- Latency wins are only part of the story.
- Deployment economics will decide scale.
- Reliability history will influence adoption.
- Supply chain depth can become a moat.
Industry standard or premium niche?
The strongest near-term possibility is that HCF becomes a premium option for high-value links rather than a universal replacement for conventional fibre. That would still be a meaningful success. Infrastructure technologies often begin as niche accelerators before gradually spreading into mainstream use.The key question is whether HCF follows the path of a specialized performance layer or becomes foundational in future cloud networks. Microsoft clearly wants the latter, but the market will decide based on cost, engineering complexity, and operational proof.
Strengths and Opportunities
Microsoft and HUBER+SUHNER have several advantages here, and the most important one is that the technology is no longer theoretical. The partnership now spans research, production, qualification, and live traffic, which is exactly the sequence needed to make a new infrastructure standard stick. It is also notable that the rollout is aligned with cloud and AI demand, where performance gains have immediate commercial value.- Live deployment gives the technology credibility.
- Qualified cable and connector designs reduce adoption friction.
- Higher-capacity variants point to a forward roadmap.
- Multiple manufacturing sites improve resilience.
- Alignment with AI growth creates clear demand.
- End-to-end ecosystem control strengthens Microsoft’s network strategy.
- Potential latency reductions may improve cloud performance.
Strategic upside
If the rollout continues smoothly, Microsoft can use HCF as a quiet infrastructure moat. The company may not market it loudly to consumers, but its cloud teams can leverage it to improve service quality and regional responsiveness.HUBER+SUHNER, meanwhile, gains a strategic anchor customer in a technology that could grow into a much larger market. That is a valuable position if HCF adoption accelerates across the industry.
Risks and Concerns
The biggest risk is that industrial scale proves harder than research scale, which is a familiar pattern in advanced networking. HCF needs reliable manufacturing, robust field handling, and serviceability under real operating conditions, and any weakness in that chain can slow adoption. There is also the practical issue of cost: even if HCF performs better, it still has to justify itself economically against highly optimized conventional fibre.- Manufacturing complexity could limit volume.
- Field repairability remains a critical question.
- Connectorization challenges may slow integration.
- Cost premiums could restrict deployment to niche routes.
- Supply chain concentration may create risk.
- Operational learning curves could delay broader rollout.
- Performance gains may not always outweigh complexity.
Adoption friction
One subtle risk is that HCF could become one of those technologies that everyone in the industry admires but only some operators use. That would still be useful, but it would cap the market’s size and slow ecosystem maturity.There is also the risk of overpromising. Microsoft’s claims about speed and latency are compelling, but enterprise buyers will want proof across many workloads and environmental conditions, not just in showcase deployments.
Looking Ahead
The next phase will likely be defined by scale, not by headlines. If Microsoft and HUBER+SUHNER can continue expanding capacity while keeping deployment reliability high, HCF will move closer to becoming a standard option for premium cloud links. If they stumble on manufacturing or field operations, the technology may remain important but slower to spread.The broader signal is still positive. Microsoft is clearly investing in the network layer as a strategic differentiator, and HUBER+SUHNER appears willing to industrialize alongside that ambition. In an AI-driven cloud market, that is a sensible bet, because better networking increasingly means better product performance.
What to watch next
- Additional Azure regions using HCF in production.
- New higher-density cable variants entering qualification.
- Broader ecosystem manufacturing beyond the current core partners.
- More Microsoft research on latency, loss, and reach.
- Any signs that rival hyperscalers pursue similar deployments.
- Evidence that HCF is being used for more than just metro links.
- Improvements in connector standardization and field serviceability.
Source: Telecompaper Huber+Suhner ramps up hollow core fibre production to meet Microsoft data centre demand