Identification of step-index fibers by static light scattering

Accurate characterization of optical fibers is crucial for numerous applications in telecommunications, sensing, and medical diagnostics. In this study, a novel method of sizing of step-index fibers is presented on the basis of the analysis of data on light scattering. This approach integrates mathematical modeling of light scattering by step-index fibers with signal processing and correlation algorithms to extract information on the layered structure of the fiber under test. Practical measurements use of a novel optical system for laboratory-level tests. The results show a clear route to improve non-destructive and efficient fiber characterization in online industrial process control.