What should be avoided to minimize attenuation in fiber optic cables?

Minimizing attenuation in fiber optic cables is crucial for maintaining signal integrity over long distances. Excessive twisting and bending introduces stress on the fiber, which can cause micro-bend or macro-bend losses. This bending alters the light propagation within the fiber, leading to increased signal loss.

When fiber optic cables are twisted or bent beyond their specified limits, it can also lead to physical damage over time, such as cracking of the glass or degradation of the protective coatings. This excess pressure disrupts the fiber's optimal light transmission path, contributing significantly to attenuation.

In contrast, proper bending and routing is essential to ensure that the light travels through the fiber without significant loss. Using standard connectors and reducing cable length are strategies used to optimize installation, but properly managing bending and twisting is critical for avoiding specific losses associated with these mechanical stresses.