Fiber optic transmission is currently being used in a variety of applications. In many of these applications, a link analysis is required to determine whether the fiber optic link meets dispersion and attenuation requirements. Two applications that require link analysis are long distance point-to-point links operating at high data rates such as interoffice telephone trunks, and data bus applications where many subscribers connect to a high data rate transmission medium for multi-point distribution.
"Fiber Optic Transmission Link Analysis", Proc. SPIE 0224, Fiber Optics for Communications and Control, (19 September 1980); doi: 10.1117/12.958675; https://doi.org/10.1117/12.958675