Brillouin Light Scattering Study On E-Glass Fibres (In French)

Reinforcement glass fibre forming is a complicated process, the physics of which has not yet been completely understood. Glass temperature changes very quickly, and thus its elastic properties. Brillouin light scattering has been used to investigate the evolution of local properties of glass during fibre forming. The physical basis and experimental technique are described in this paper. Results of studies on bulk samples and fibres are then shown as well as measurements done during fibre forming. Fibre anisotropy and cooling rate dependence are discussed.