#London #United Kingdom #Fiber Optic #STL #MCF

STL Unveils High-Density Unitube Indoor Fiber Cable

On September 25, 2025, STL (NSE: STLTECH), a leading provider of optical and digital solutions, introduced its innovative Unitube Single Jacket Indoor Optical Fiber Cable featuring Multi-Core Fiber (MCF) at the Connected Britain 2025 event in London. This advanced technology integrates four cores within the same sheath diameter as standard Single-Mode Fibers (SMF), maintaining the sheath size at 250/200 micrometers.

STL has established itself as a pioneer in the practical application of MCF technology. The company has crafted a comprehensive ecosystem that includes fibers, cables, and connectivity solutions tailored for underground and duct networks. This new Unitube cable not only excels in performance but is also designed for safety in challenging indoor environments. It is certified under the Construction Products Regulation (CPR) EuroClass Cca-s2, d1, a1, ensuring a high level of fire resistance and safeguarding critical infrastructures in case of fires.

The Unitube Indoor Fiber Optic Cable with MCF is ideal for data centers, campus networks, commercial buildings, and other indoor installations that require high data transmission capacities while adhering to stringent fire safety standards. In addition to the cable, STL provides optical distribution units and connectivity solutions that are designed for seamless integration into existing network architectures.

Key Features of the Unitube Indoor Fiber Optic Cable with MCF

1. Superior Security: The cable supports Quantum Key Distribution (QKD) for secure, tamper-proof physical and digital encryption.
2. Future-Proof Bandwidth: It facilitates next-gen applications, including AI, 5G, and quantum computing, with a throughput potential four times that of conventional fibers.
3. Compact Efficiency: MCF allows for multiple cores to be packed into a smaller diameter, significantly increasing the number of fibers (e.g., 864 fibers with four cores yields 3,456) without enlarging the overall dimensions.
4. High Return on Investment: A secure and scalable network backbone is achieved in a single deployment.

Dr. Badri Gomatam, Chief Technology Officer of STL, remarked, “With ongoing innovation and global partnerships, STL accelerates the adoption of advanced optical technologies. Our Unitube Single Jacket Indoor Fiber Optic Cable using MCF is crafted to meet the ever-growing demands for powerful, secure, and future-ready networks. We take pride in advancing our global standardization efforts and real implementation to shape the optical infrastructure for next-generation applications.”

About STL - Sterlite Technologies Ltd

STL is a global leader in providing advanced connectivity solutions, offering end-to-end services for building AI-enabled infrastructures, FTTx, land, enterprise, and data center networks. Explore more at stl.tech and follow us on Twitter, LinkedIn, and YouTube for the latest updates.