High-purity glasses for fiber optics

In this work, the properties of $0.2 \mathrm{ZnO}-0.8 \mathrm{TeO}_{2}$ glasses with different synthesis conditions were synthesized and studied. $\mathrm{Er}_{2} \mathrm{O}_{3}, \mathrm{Yb}_{2} \mathrm{O}_{3}, \mathrm{Nd}_{2} \mathrm{O}_{3}$ in the composition of 0.1 mole fraction were used as dopants. High-purity tellurium oxide (5N) and high-purity zinc oxide (5N) are used as the main matrix material. The resulting glasses can be used for fiber optics or detectors of IR radiation.