A U.S. subsidiary of STL, Sterlite Technologies Inc. (STI), developed an optical fiber for data center operators, hyperscalers as well as telecom service providers in the United States.
STL’s Celesta Intermittent Bonded Ribbon (IBR) Cable provides best-in-class high fiber density that packs 864 fibers in a cable diameter of only 11.7 mm, optimized for jetting in a 14 mm inner diameter duct.
Holding the best record performance of approximately 4,700 ft (1500+ m) in under 20 minutes, this latest generation of IBR cable also employs STL’s state-of-the-art bend-insensitive HD G.657.A2 200-micron fiber with industry-standard sheathing to deliver best-in-class installation performance for our customers in the United States.
Hyperscalers require ultra-high-capacity, low-latency, and highly scalable network infrastructure to support massive data flows between distributed data centers as well as cloud environments. Their networks require cables that can maximize fiber count within available limited duct space, minimize installation time, and offer superior reliability under diverse environmental and operational conditions.
STL’s Celesta IBR Cable integrates robust performance for duct installations with the productivity of high-count mass fusion splicing. The innovative ribbon bond design results in dense fiber packing and a smaller cable diameter, offering an outstanding solution for demanding high-growth, high-bandwidth communications in applications like data centers, equipment connections within cabinets, and outside plant applications.
Executive Statement
According to Dr. Badri Gomatam, CTO, STL, their breakthrough Celesta IBR cable is a testament to STL’s commitment towards advanced engineering as well as customer-centric innovation. By delivering industry-leading fibre density and bend performance in a remarkably slim design, they are empowering hyperscalers and data centres to scale up efficiently and sustainably—laying the foundation for next-generation digital infrastructure.