HardwareAug 19, 2026, 10:00 AM

Relativity Networks raises $22 million to bring a faster kind of fiber to data centers

30-second summary

Relativity Networks raised $22 million to commercialize hollow-core fiber, which transmits data up to 30% faster than traditional fiber.

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Relativity Networks raises $22 million to bring a faster kind of fiber to data centers
Key takeaways
  • Relativity Networks raised $22 million to commercialize hollow-core fiber, a technology that transmits data up to 30% faster than traditional fiber.
  • Hollow-core fiber uses air-filled channels instead of glass cores, reducing signal delay and improving efficiency for high-performance computing.
  • The funding will help expand infrastructure and partner with data center operators for large-scale adoption.
  • AI workloads and data centers could see faster model training and lower latency with this technology.
Full story

Relativity Networks has closed a $22 million funding round to accelerate the deployment of hollow-core fiber in data centers. The technology replaces traditional glass cores with air-filled channels, reducing latency and increasing transmission speeds by up to 30%. Unlike conventional fiber, which relies on light bouncing through silica, hollow-core fiber guides light through air, minimizing signal delay and improving efficiency for high-performance computing and AI workloads.

The company plans to use the funds to expand its infrastructure and partner with data center operators to integrate the faster fiber. Hollow-core fiber has been historically niche due to manufacturing challenges, but advancements in production techniques have made it more viable for large-scale adoption. Data centers handling AI training and real-time analytics stand to benefit significantly from the reduced latency, which could translate to faster model iterations and lower operational costs.

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Why this matters
Developers

Developers working with AI models or high-performance computing may benefit from reduced latency and faster data transmission.

Businesses

Companies relying on data centers for AI or real-time analytics could see improved performance and cost savings.

Investors

Investors in AI infrastructure or data center technologies may see new opportunities in hollow-core fiber adoption.

Glossary
hollow-core fiber
A type of optical fiber where light travels through air-filled channels instead of a glass core, reducing latency and increasing transmission speed.
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