These faults can be caused by various factors, including construction activities, natural disasters (such as earthquakes or hurricanes), vandalism, or accidental damage during maintenance or installation. 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. Microbends and Macrobends What Happens Microbends are small-scale distortions in the fiber core caused by uneven pressure or tightly packed fibers. Excessive Length of Fiber Optic Cable: Long fiber optic cables can lead to performance issues. Compression or Breakage of Fiber Optic Cable: When fiber optic cables experience uneven stress, such as. Fiber break, broken fiber is divided into two types: partial interruption and the entire optical cable interruption Partial interrupts are of the following categories: The first reason is that the fiber core is interrupted due to external force extrusion or excessive bending. One of the most common is complete or partial breakage.