STL Unveils the Slimmest IBR Cable for Hyperscalers in the USA

STL Launches Innovatively Slim IBR Cable for Hyperscalers

On September 4, 2025, Sterlite Technologies Inc. (STI), a subsidiary of STL, announced a breakthrough in optical fiber technology with the introduction of the world's slimmest Intermittent Bonded Ribbon (IBR) cable. Designed specifically for data center operators, hyperscalers, and telecom service providers across the United States, the new Celesta IBR Cable boasts an impressive 864 fibers packed into an ultra-thin diameter of just 11.7 mm. This new cable is optimized for installation in 14 mm inner diameter ducts, providing a cutting-edge solution for the rapidly expanding data infrastructure market.

The demand for high-capacity, low-latency network infrastructures has grown exponentially as hyperscalers require efficient methods to support massive data flows between their distributed data centers and cloud environments. Traditional cables often limit both fiber count and installation efficiency, but STL's Celesta IBR Cable promises to maximize fiber density while minimizing installation time and providing superior reliability in varied environmental and operational conditions.

The revolutionary ribbon bond design of the Celesta IBR Cable allows for denser fiber packing, combining high capacity with a remarkable reduction in cable size. Thus, it meets the needs of high-growth, high-bandwidth applications, making it suitable for use not only within data centers but also for interconnecting various equipment and within outside plant applications. Given the stringent requirements and space constraints typically faced by data center builders, this cable offers a much-needed solution.

With this launch, STL provides a solution that adheres to the ICEA 122-744 standards and is compliant with GR 20 specifications, ensuring that it can be effectively installed in micro subducts measuring 14/18 mm. Testing carried out under IEC-compliant conditions guarantees the cable's performance and reliability, crucial for maintaining uninterrupted data services.

Another standout feature of the Celesta IBR Cable is its remarkable jetting performance, allowing for installations exceeding 4,700 feet (1500+ m) in under 20 minutes. This rapid installation capability makes it an attractive option for companies needing quick deployment of high-capacity networks.

STL continues to evolve its IBR cable portfolio, with offerings that range from 12F to an industry-leading 6912F. In the last five years alone, STL has successfully produced over 10 million fiber kilometers while supplying customers across Europe and the United States. The introduction of IBR technology in India marked STL's commitment to driving advancements in digital infrastructure, and the company is well-equipped with 10 manufacturing facilities located in North America, Europe, and Asia to meet the global connectivity needs of its customers swiftly and efficiently.

Dr. Badri Gomatam, Chief Technology Officer at STL, highlighted the significance of this cable, stating, "Our breakthrough Celesta IBR cable reflects STL's dedication to advanced engineering and customer-focused innovation. By providing industry-leading fiber density and performance in a remarkably slim design, we are enabling hyperscalers and data centers to scale efficiently and sustainably—setting the stage for next-generation digital infrastructure."

In conclusion, the Celesta IBR Cable is a testament to STL's innovative spirit and readiness to tackle the evolving demands of modern data networks. As the world leans increasingly towards digital connectivity, solutions like this will undoubtedly play a crucial role in shaping the future of telecommunications and data management.