What is the role of the core in a fiber optic cable?

The core in a fiber optic cable serves the critical function of transmitting light signals. It is the central part of the fiber where light travels, typically made from glass or plastic. The core's refractive index is designed to allow light to be guided within it, facilitating efficient signal transmission over long distances with minimal loss.

Understanding this role is fundamental when dealing with fiber optics, as effective communication systems rely on the core's ability to carry these signals with clarity and speed. Its design ensures that the light beams remain internally reflected, ensuring the signals maintain their integrity as they travel through the medium.

While the outer protection, color coding, and fiber connections are important for the overall functionality and organization of fiber optic systems, they do not play a role in the actual transmission of light, which is the core's primary responsibility.