Physicochemical Properties and Fiber-Drawing Ability of Tellurite Glasses in the TeO 2 -ZnO-Y 2 O 3 Ternary System.

Autor: Strutynski, Clément, Evrard, Marianne, Le Gendre, Antoine, Maldonado, Anthony, Désévédavy, Frédéric, Gadret, Grégory, Jules, Jean-Charles, Smektala, Frédéric
Předmět:
Zdroj: Materials (1996-1944); Feb2022, Vol. 15 Issue 3, p1177, 1p
Abstrakt: Glasses in the TeO2-ZnO-Y2O3 (TZY) ternary system are examined in the present work. The vitrification domain of the chosen oxide matrix is determined and differential scanning calorimetry as well as X-ray diffraction measurements are carried out. The material characterizations reveal that Y2O3 incorporation cannot exceed 5 mol.% without causing detrimental crystallization within the glass. Optical transmission and refractive index investigations are conducted on compositions yielding fully amorphous samples. Next, the fiber drawing ability of selected yttrium-containing zinc-tellurite glasses is assessed and fiber-attenuation measurements in the mid-infrared are presented. Finally, a multimode step-index fiber is fabricated by combining a TZY cladding glass with a La2O3-based tellurite core glass. It is believed that yttrium-containing glasses could prove useful in association with other high glass transition temperature (>300 °C) TeO2-based materials for the design of robust optical fibers with precisely engineered refractive index profiles. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
Externí odkaz:
Nepřihlášeným uživatelům se plný text nezobrazuje