What is the function of strength members in fiber-optic cables?

The function of strength members in fiber-optic cables is to provide structural support and durability. These strength members are typically made from materials like Kevlar or fiberglass, which enhance the mechanical strength of the cable. Their primary role is to protect the more delicate fiber-optic strands during installation and throughout the life of the cable, ensuring that physical stresses such as tension, bending, and environmental impacts do not damage the fibers.

While other components of the fiber-optic cable may serve different purposes—like enhancing signal transmission or facilitating cable identification through color coding—strength members are specifically focused on the structural integrity and resistance to external forces, which is crucial in maintaining the performance and longevity of the fiber-optic system.