Optical properties of alkali-antimonite glasses and purified processes for fiber drawing

• Antimonite glasses: Sb2O3–PbO–M2O, M = Li, Na, K, have been synthesized and characterized.
• High purity syntheses have been carried out.
• Fiber has been drawn and attenuation in IR has been measured.

We study Antimonite glasses in the ternary systems Sb2O3–PbO–M2O (M = Li, Na, K). We have measured the density and refractive index according to the glass composition in this system. We have also measured the optical transmission in the UV–Vis and infrared range and the optical band gap. The influence of glass synthesis on extrinsic absorption has been studied. For the first time in this system, we have observed that stable glassy composition was drawn into a fiber, and the optical losses were determined in the 1–5 μm infrared region.