Amidst the Digital Wave, AI Compute Interconnectivity Enters a High-Speed Growth Phase. Generative AI and real-time intelligent computing are profoundly reshaping the global industrial landscape, imposing extreme requirements on data transmission: ultra-low latency, massive bandwidth, and exceptional stability. The physical transmission limits of traditional quartz optical fiber can no longer meet the core demands of AI compute interconnectivity, creating an urgent need for disruptive technological breakthroughs.

During MWC 2026, FiberHome unveiled its improved Next-Generation (NG) Double-Nested Ultra-Low-Loss (ULL) Hollow-Core Fiber (HCF). Leveraging the disruptive technology of light guidance through air, this innovation breaks through traditional transmission bottlenecks. With core advantages of ULL, superior environmental adaptability, and flexible scalability, it provides robust optical transmission support for global compute infrastructure construction.

1.Technological breakthrough, unlocking Ultra-Fast, ULL transmission

HCF utilizes air as the transmission medium, allowing optical signals to propagate at speeds approaching the speed of light in a vacuum, thereby breaking the physical limits of traditional silica cores quartz fiber at the fundamental level. Addressing the industry challenge of ensuring stable signal propagation through air channels, FiberHome has deeply researched anti-resonant wave guide structures and refined precision manufacturing processes to achieve comprehensive performance breakthroughs.

The new ULL HCF achieves a record-low attenuation of 0.05 dB/km @ 1550 nm. Its transmission latency is 31% lower than that of quartz fiber, significantly shortening cross-node transmission times for distributed training of large AI models. This markedly enhances both training and inference efficiency. Furthermore, its high-bandwidth characteristics perfectly align with the rapid data exchange demands of AI intelligent computing.

2.Performance upgrade, superior environmental adaptability for efficient transmission

Guided by scenario-based applications, FiberHome has overcome industry hurdles such as non-compliant PMD (Polarization Mode Dispersion) metrics and loss fluctuations, achieving a comprehensive performance upgrade for HCF. By leveraging patented special-gap tube structure technology to enhance anti-interference capabilities, combined with optimized process gases and static atmosphere intervention techniques, the fiber keeps loss fluctuations within engineering tolerable thresholds. This enables stable transmission across the C+L ultra-wide band over kilometer-scale distances, with an overall attenuation of less than 0.18 dB/km. Over a 10-kilometer span (including 0.6 dB connector loss), the total attenuation lower than 1.2 dB, ensuring excellent performance even over tens of kilometers to meet long-distance interconnect requirements between cities.

Additionally, the new ULL HCF boasts exceptional bend-resistance performance.  This allows it to effortlessly cope with complex environments such as aerial/pipeline deployments. It also couples efficiently with quartz optical fiber systems for seamless integration, significantly reducing the cost and cycle of compute network upgrades.

3.Flexible scalability to meet the diverse networking requirements of computing power networks

To address differentiated networking requirements across various compute scenarios, the NG ULL HCF offers highly scalable in terms of product size and core count, depending on specific scenarios, such as short-distance interconnects within data centers, long-distance metro Data Center Interconnect (DCI), or high-density interconnection for ultra-large-scale compute clusters-the product specifications can be flexibly adjusted. It supports customized R&D ranging from single-core small-size configurations to multi-core integrated solutions. This high scalability, capable of meeting the miniaturization requirements of high-density cabling in data centers while also accommodating the high-fiber-count and long-distance transmission needs of metropolitan computing dedicated lines. By achieving "one fiber fits multiple scenarios," it provides flexible support for tiered network deployment and elastic scaling, enabling customers to deploy resources on demand and enhance the cost-effectiveness of network infrastructure.

4.Accelerating commercial deployment, opening a new chapter for AI Data Center applications

FiberHome adheres to a dual-drive strategy of technological innovation and commercialization, achieving full-process industrialization breakthroughs from raw materials and equipment platforms to bulk manufacturing processes, possessing mature commercial delivery capabilities. The NG ULL HCF has passed authoritative certification by the China Academy of Information and Communications Technology (CAICT) Teldat Laboratory, laying a solid foundation for a large-scale promotion and application.

In the field of AI data centers, the application prospects for this fiber are vast. Within Data Centers, it enables short-distance interconnects between servers and cabinets, effectively enhancing data exchange efficiency; In Cross-Data-Center scenarios, it reduces synchronization latency, enabling efficient cross-domain scheduling of computing power; In Hyper-scale Computing Clusters, the high-density and scalable characteristics support high-speed interconnection of massive compute nodes, building a solid transmission foundation for large model training and real-time intelligent computing.

Looking ahead, FiberHome will continue to optimize HCF performance, expand product specifications, and enhance R&D focused on scenario-specific adaptation, fully promote the iterative upgrading and large-scale commercial deployment of HCF technology. Leveraging the advantages of end-to-end industrialization and cutting-edge technological capabilities, FiberHome continue advancing the development of global computing infrastructure and lead the way in high-quality development of AI connectivity.

Schematic Diagram of FiberHome New-Generation Ultra-Low Loss Hollow-Core Fiber