Temperature-dependent spectroscopic properties of Tm3+ in germanate, silica, and phosphate glasses: A comparative study

• DOI: 10.1063/1.2912952
• Publication Date: 2008-05-07T14:59:35Z
• Authors: Giorgio Turri; Vikas Sudesh; Martin Richardson; Michael Bass; Alessandra Toncelli; Mauro Tonelli
• Keywords: Germanate; Thulium; Phosphate glass

Spectroscopic properties of thulium-doped germanate, silica, and phosphate glasses were measured compared since such are interest as materials for fiber lasers in the eye-safe wavelength region. F43 excited state fluorescence decay dynamics was investigated at temperatures from 8to300K results revealed a strong dependence lifetime on host matrix. The temperature-dependent stimulated emission cross section obtained by using Fuchtbauer–Ladenburg technique. In glass fluorescent is short, making this material difficult to use 2μm laser purposes. Tm3+-doped germanate shows longer than comparable value some interesting temperature-independent properties.