Inverse analysis of light scattered at a small angle for characterization of a transparent dielectric fiber

The objective of this paper is to discuss the possibility of noninvasive optical characterization of a transparent (glass) fiber by means of low-coherent light scattering. It will be shown that, by adjusting the temporal coherence of incident light, it is possible to select these specific orders of scattering, which are related to diffraction. Discussion will be devoted to the direct scattering and the inverse problem, where an inference about the diameter of a multilayered and transparent fiber is accomplished.