Why should sharp bends be avoided in fiber optic cables?

Sharp bends in fiber optic cables should be avoided because they can cause increased attenuation and may damage the fiber. When a fiber optic cable is bent sharply, it can lead to microbending, which compresses the core of the fiber and disrupts the path of light traveling through it. This disruption can result in signal loss, as some of the light may escape from the core, leading to increased attenuation. If the bend is severe enough, it can lead to physical damage to the fiber itself, which can cause permanent loss of signal or even complete failure of the cable.

Understanding this principle is crucial for maintaining the integrity of fiber optic networks, as excessive bending can significantly affect performance and reliability. Proper installation and management of bends in the cable are essential for ensuring efficient data transmission.