Nanostructured optical fibers in the SiO 2 /SnO 2 system by the sol-gel method

SiO2/SnO2 nanostructured optical fibers are elaborated using two ways based on the chemical sol-gel method: the “inverse-dip coating” and the “powder in tube” processes. The structural and waveguiding properties of the drawn optical fibers are studied according to the concentration of SnO2 nanocrystals. In this way, the study on the 450–1750nm wavelength range shows that the transmission band expands to the infrared wavelength as the SnO2 concentration increases and the measured attenuation losses are below 1dBm−1.