Wide applying of the optical cable on networks allows to transmit data with great bit-rate and long distances. Bit-rate growing is concerned with many problems, have not been taken into account before. Continuous control of networks and information transmission quality is necessary to prevent and to solve mentioned problems.
Alexander S. Tyuterev,
"Backscattering trace identification in remote fiber test systems", Proc. SPIE 5485, Optical Technologies for Communications, (18 May 2004); doi: 10.1117/12.564923; https://doi.org/10.1117/12.564923