Fiber Optic Cable Stiffness
The prEN IEC 60794-1-117:2025 standard establishes procedures for assessing the bending stiffness of optical fibre cables—a critical mechanical property that determines a cable's ability to resist deformation under stress. Proper bend radius control ensures the integrity of optical performance and protects the glass. In this work we tested standard optical communications fiber SMF-28e from Corning, which according to and 245±5 m doped fiber, from FiberCore, with 125±1 m diameter without coating. We describe how this reliability relates with the various processing steps before the cable is eventually put into service - e.
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