Sterlite Technologies Limited (STL), a leading optical and digital solutions company, has made waves at Connected Britain 2025 with the showcase of its cutting-edge Unitube Single Jacket Indoor Fibre Optic Cable featuring 4-core Multi-Core Fiber (MCF) technology. This innovative product represents a significant leap forward in optical fiber technology, promising enhanced performance and safety for demanding indoor environments.

Revolutionary Multi-Core Fiber Technology

STL's new cable packs four cores into the same cladding diameter as standard single-mode fiber, while maintaining a coating size of 250/200 micrometers. This breakthrough allows for a substantial increase in data transmission capacity without expanding the physical footprint of the cable.

Certified for Safety and Performance

A key feature of STL's new offering is its certification under the Construction Products Regulation (CPR) EuroClass Cca-s2, d1, a1. This certification ensures a high level of fire resistance, making the cable ideal for critical infrastructure protection during fire incidents. The cable is particularly well-suited for applications in data centers, campus networks, and commercial buildings where both high-capacity data transfer and stringent fire safety standards are essential.

Key Features and Benefits

STL's Unitube Single Jacket Indoor Fibre Optic Cable with MCF offers several advantages:

1. Enhanced Security: The cable supports Quantum Key Distribution (QKD) for physical and digital tamper-evident encryption.
2. Future-Ready Bandwidth: With four times the throughput potential of legacy fibers, it's designed to support next-generation applications in AI, 5G, and quantum computing.
3. Compact Efficiency: The multi-core design multiplies fiber count significantly. For example, a cable with 864 fibers using 4 cores effectively provides 3,456 fiber paths.
4. High Return on Investment: The cable offers a secure and scalable network backbone in a single deployment.

Industry Leadership and Innovation

STL has positioned itself at the forefront of MCF technology, being among the first companies to demonstrate real-world deployments across underground and duct networks. The company has developed a complete ecosystem of fibers, cables, and termination solutions to support this advanced technology.

Dr. Badri Gomatam, CTO of STL, emphasized the company's role in accelerating the adoption of advanced optical technologies. He stated, "Through continuous innovation and global partnerships, STL is speeding up the adoption of advanced optical technologies. Our Unitube Single Jacket Indoor Optical Fibre Cable with MCF is engineered to meet the ever-growing demands of high-capacity, secure, and future-ready networks."

Looking Ahead

As data demands continue to grow exponentially, STL's latest innovation represents a significant step forward in optical infrastructure. By leading the evolution of optical technology that powers next-generation applications, STL is positioning itself as a key player in shaping the future of global connectivity.

The showcase at Connected Britain 2025 not only highlights STL's technological prowess but also underscores the company's commitment to developing solutions that address the complex challenges of modern network infrastructure. As the industry moves towards more advanced, secure, and efficient communication systems, STL's Multi-Core Fiber technology is set to play a crucial role in building the networks of tomorrow.

Sterlite Technologies Limited (STL) [NSE: STLTECH] has made a significant breakthrough in the optical fiber industry with the launch of what it claims to be the world's slimmest Intermittent Bonded Ribbon (IBR) cable. This innovative product, specifically designed for hyperscalers in the United States market, packs an impressive 864 fibers into a cable with a diameter of just 11.70 mm.

Cutting-Edge Technology for Data Center Efficiency

The new Celesta IBR Cable, developed by Sterlite Technologies Inc. (STI), a U.S. subsidiary of STL, represents a leap forward in fiber optic technology. This ultra-thin cable is optimized for jetting in a 14mm inner diameter duct, offering a solution to the growing demand for high-density fiber deployment in data centers and hyperscale environments.

Key Features and Benefits

• Record-Breaking Performance: The cable boasts a jetting performance of approximately 4,700 feet (1500+ meters) in under 20 minutes, setting a new standard for installation efficiency.
• Advanced Fiber Technology: Utilizes STL's state-of-the-art bend-insensitive HD G.657.A2 200-micron fiber, ensuring superior performance and reliability.
• Compact Design: With 864 fibers packed into an 11.70 mm diameter, it maximizes fiber count within limited duct space.
• Compliance and Testing: Meets ICEA 122-744 standards, is GR 20 compliant, and has been tested in an IEC-compliant track configuration.

Meeting Hyperscaler Demands

The Celesta IBR Cable is designed to address the specific needs of hyperscalers, who require ultra-high-capacity, low-latency, and highly scalable network infrastructure. By offering a cable that can maximize fiber count in available duct space and minimize installation time, STL is positioning itself as a key player in supporting the massive data flows between distributed data centers and cloud environments.

Industry Impact and STL's Position

Dr. Badri Gomatam, CTO of STL, emphasized the significance of this development, stating, "Our breakthrough Celesta IBR cable is a testament to STL's commitment to advanced engineering and customer-centric innovation. By delivering industry-leading fiber density and bend performance in a remarkably slim design, we're empowering hyperscalers and data centers to scale up efficiently and sustainably—laying the foundation for next-generation digital infrastructure."

STL's IBR cable portfolio now spans from 12F to an industry-leading 6912F, with the company having produced and delivered more than 10 million fiber kilometers to customers across Europe and the United States over the past five years. With ten manufacturing facilities strategically located in North America, Europe, and Asia, STL is well-positioned to meet diverse global connectivity needs swiftly and at scale.

This latest innovation from Sterlite Technologies demonstrates the company's ongoing commitment to advancing optical fiber technology and meeting the evolving needs of the data center and hyperscale markets. As demand for high-capacity, efficient fiber optic solutions continues to grow, STL's ultra-thin 864F IBR cable is set to play a crucial role in shaping the future of digital infrastructure.