Sterlite Technologies: Multicore Fiber and World's Slimmest Fiber (864F IBR) for AI

STL's Multicore Fiber portfolio advances the Make-in-India enabler for quantum communications and silicon photonics.
Feb. 12, 2026

Sterilite Technologies (STL) MultiCore Fibre (MCF) suite consists of ultra-thin fiber with 7 and 4 cores (instead of one), along with multicore fiber cables drawn from indigenously developed multicore pre-form technology. The multicore fiber leverages Space Division Multiplexing in 7- and 4-core fiber to achieve ultra-high transmission capacity per fiber within the same diameter. This fiber was deployed in the Advanced Optical Communications (AOC) Test Bed project with DoT and IIT Chennai last year to evaluate its transmission performance under on-field conditions using advanced technologies. 

Judge’s comment: “Multicore fiber breaks barriers and enables the next generation of optical communications.”

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