What is the total loss from the beginning to the end of a fiber optic link called?

The total loss from the beginning to the end of a fiber optic link is referred to as total attenuation. This term encompasses all forms of signal loss that occur throughout the entire length of the fiber, including losses due to absorption, scattering, and any additional factors affecting signal strength. Total attenuation is a critical factor in fiber optics, as it impacts the performance and reliability of the communication link.

Reflective loss pertains specifically to light that is reflected back at interfaces within the system, rather than loss over the full link. Splice loss refers to the loss of signal strength at points where two fiber segments are joined, and connector loss applies to losses occurring at the points where connectors are mated. While all these types of losses contribute to the overall attenuation of the link, they do not represent the total loss from the start to the end of the fiber optic link.