Photonic Bandgap Confinement in an All-Solid Tellurite Glass Photonic Crystal Fibre

In this paper, the fabrication and optical assessment of an all-solid tellurite glass photonic crystal fibre is discussed. The manufacturing process via a preform drawing approach and the characterization process is described and discussed. The fibre exhibits some minor morphological deformations which do not impair the observed optical confinement by bandgap effect within the fibre. The experimental fibre attenuation spectrum displays clear bandgap confinement regions whose positions are confirmed by modelling the fibre properties using a semi-analytical method similar to the ARROW model. The combination of PBF structures with the particular optical properties of tellurite glasses can lead to the development of optical components with nonconventional characteristics, especially those where chromatic dispersion can be critical