Can You Cut and Reattach Fiber Optic Cables? The short answer: No. Looking directly into the end of a live cable can cause serious eye damage. Fiber-optic cables are the backbone of modern connectivity—powering 5G networks, global internet backbones, and data center interconnections with near-light-speed data transmission. While these cables are engineered for durability (with some rated to last 25+ years), they are not invulnerable. Even. However, professionals with the right tools and knowledge can effectively repair a damaged fiber optic cable and restore its functionality. This involves a set of specialized equipment such as a fusion splicer, fiber cleaver, and fiber stripper, among others. This complete guide covers everything from identifying causes of failure to advanced repair techniques, drawing on the latest. Can you repair fiber optic cable? Even though fiber cables are very durable, they can still sustain damage, particularly cable sections that are exposed to the elements.