The Spectrum and laser properties of ytterbium doped phosphate glass at low temperature

Dai, S.*; Sugiyama, Akira; Hu, L.*; Liu, Z.*; Huang, G.*; Jiang, Z.*

Journal of Non-Crystalline Solids, 311(2), p.138 - 144, 2002/11

https://doi.org/10.1016/S0022-3093(02)01365-0

Low-temperature absorption and fluorescence spectra of the Yb3+ ions were measured in phosphate glass with compositions of (60-65)PO-(4-8)BO-(5-10)AlO-(10-15)KO-(5-10)BaO-(0-2)LaO-(0-2)NbO-(4-87)YbO in mol-%. Temperature dependence of lifetime from F upper level of YB was investigated with a cryostat. The glass laser performance pumped by 940 nm laser diode was measured at different temperature range. At 8 K, glass laser oscillation had a slope efficiency of 4% and a maximum power of 2 mW at the peak laser wavelength of 1001 nm.