Yb:phosphate laser glass with high emission cross-section

Thermal stability and spectroscopic properties of Yb3+-doped zinc–tungsten–tellurite glasses

“…4 list the spectroscopic properties and minimum pump intensities(I min ) between some laser glasses (QX, ADY, LY, PN, PNK, FP) reported in published papers [6][7][8][29][30][31]. It can be seen that the TWZ4 composition glass has excellent laser performance parameters.…”

“…For this reason, the compositional dependence of the spectroscopic properties of Yb 3+ -doped glasses is not well established. Up to now, there are only a few papers involving the effect of composition on the emission cross-section of Yb 3+ in simple systems as borate, phosphate, silicate and fluoride phosphate glasses [6][7][8][9].…”

Ytterbium doped heavy metal oxide glasses with high emission cross-section

“…3 we compare the σ e of HMO with other glasses. QX, PNK, ADY, LY and PN all belong to phosphate glass system and FP pertains to the fluorophosphates glass [2,[4][5][6]8,9] Why do these two systems have such high σ e values? According to Eq.…”

“…Yb 3+ -doped glass has a lifetime 3-6 times longer than the widely used Nd 3+ -doped phosphate glasses. However, the values of σ e of most Yb-doped glasses (σ e 1.3 pm 2 ) is less than those of Nd-doped phosphate glasses (3-4 pm 2 ) [4]. To tackle the issue, this work was set at the aim of differentiating the factors of obtaining higher σ e values and making Yb 3+ -doped glasses commercially applicable.…”

“…For this reason, the compositional dependence of the emission cross-section of Yb 3+ -doped glasses is not well established. Up to now, there have been only a few papers describing this relationship in simple systems, such as borate, phosphate, silicate and tellurite glasses [4,5], while the heavy metal oxide (HMO) glasses receive less attention though they possess many merits such as small phonon energy, high refractive index, and good physical and chemical stability [6]. As mentioned in previous reports, the values of σ e of the HMO glasses were relatively small and of no more than 1.1 pm 2 (±5%) [5,6].…”