Nd<sup>3+</sup> doped titanate-germanate glasses for near-IR laser applications
Wojciech A. Pisarski, Karolina Kowalska, Marta Kuwik, Joanna Pisarska, Jan Dorosz, Jacek Żmojda, Marcin Kochanowicz, Dominik Dorosz
Abstract
In current work, spectroscopic properties of Nd 3+ ions in titanate-germanate glasses have been studied for near-IR luminescence and laser applications. Near-IR luminescence at 1.06 µm due to 4 F 3/2 → 4 I 11/2 laser transition of Nd 3+ ions has been examined in the function of TiO 2 concentration. Based on theoretical calculations and experimental investigations, several spectroscopic and laser parameters for Nd 3+ ions in titanate-germanate glasses were determined and compared to the previous results published for similar glass systems. Our systematic studies indicate that Nd 3+ doped glass with molar ratio GeO 2 :TiO 2 = 2:1 presents excellent near-IR luminescence properties and could be successfully applied to laser technology.