In fiber optics, what is a potential consequence of excessive bending of the cable?

Excessive bending of a fiber optic cable can lead to significant issues, primarily signal loss and potential breakage. This occurs because fiber optic cables are designed to transmit light signals through the glass core. When the cable is bent beyond its specified radius, the light can escape from the core into the cladding, leading to attenuation or loss of the signal. In severe cases, the physical stress can also cause the glass fibers to crack or break, resulting in a complete disruption of the communication path. This is why maintaining the proper bend radius is crucial when installing and handling fiber optic cables, as it ensures optimal performance and longevity of the installation.