CFT stands for "Compacted Filled Tube" and is a technology used in the production of fiber optic cables. The filling tube around the fiber bundles is compacted to make the cable smaller and more resistant to external influences. The gel inside the tube protects and insulates the fiber bundles, thereby prolonging their lifespan. CFT cables enable higher transmission rates and are used in many applications, including telecommunications, data centers, aerospace, and infrastructure monitoring.