What does the term "attenuation" refer to in fiber optics?

The term "attenuation" in fiber optics specifically refers to the loss of signal strength as it travels through the fiber. This phenomenon is crucial for understanding how effectively a fiber optic communication system transmits data over distances. As light signals travel through the fiber, they can be absorbed or scattered by the material, which leads to a reduction in signal strength.

Attenuation is typically measured in decibels (dB) and can be influenced by various factors, including the type of fiber, wavelength of light used, bends in the cable, and impurities in the fiber material. Understanding and managing attenuation is essential for designing efficient fiber optic networks, as it affects overall performance and distance limitations.

Other options do not accurately capture the essence of attenuation in the context of fiber optics; thus, they fall short of addressing the concept's specific meaning and implications in signal transmission.