Thermal Stability and Spectroscopic Properties of Yb3+-Doped New Gallium–Lead–Germanate Glass

Yb3+-doped new gallium–lead–germanate glass is presented. Thermal stability, spectroscopic and laser performance parameters of the Yb3+-doped new gallium–lead–germanate glass are calculated. The results show that the Yb3+-doped new gallium–lead–germanate glass has good thermal stability (ΔT = 198°C), high stimulated emission cross section (0.79 pm2), and long fluorescence lifetime (1.46 ms). Compared with other Yb3+-doped glass hosts, the Yb3+-doped new gallium–lead–germanate glass has better laser performance parameters and laser properties, indicating that Yb3+-doped new gallium–lead–germanate glass is a promising laser material for short pulse generation in diode pumped lasers, short pulse generation tunable laser, high-peak power and high-average power lasers.