DOI: 10.22184/2070-8963.2026.134.2.66.71

Well-known sufficiently accurate numerical models of components and fiber optic communication lines (FOCL) as a whole have a significant drawback – high computational complexity, requiring substantial computing resources and hindering the application of these methods in real-time mode. In recent decades, a group of approximate methods for describing the propagation of optical signals in FOCL has been intensively studied. Based on these methods, computationally efficient numerical models providing acceptable calculation accuracy have been developed. The paper proposes and tests a methodology for verifying models used to evaluate the quality of information signals in FOCL.