Phosphate content influence on structural, spectroscopic, and lasing properties of Er,Yb-doped potassium-lanthanum phosphate glasses

Influence of Y2O3 Content on Structural, Optical, Spectroscopic, and Laser Properties of Er3+, Yb3+ Co-Doped Phosphate Glasses

“…The fluorescence lifetimes, obtained by fitting the fluorescence decay curve in Figure 8a, are presented in Figure 8b,c The fluorescence lifetime value of (5.95 ± 0.02) ms for the glass Y0 decreases with the increase in Y2O3 content down to (5.56 ± 0.02) ms for the glass Y3.5. These values are similar to those reported for other phosphate glasses with similar doping concentrations [23,45]. The fluorescence lifetime value of (5.95 ± 0.02) ms for the glass Y 0 decreases with the increase in Y 2 O 3 content down to (5.56 ± 0.02) ms for the glass Y 3.5 .…”

“…The refractive indices decreases with increasing wavelength and increases with the addition of Y 2 O 3 as expected due to the heavy Y compared to the other elements in the glass. The measured values are slightly higher (in the 10 −2 range) than the average of other Er 3+ :phosphate glasses [10,20,23]. One should notice that the Y 2.5 and Y 3.75 glasses exhibit similar refractive indices while having slightly different densities.…”

“…on different types of Er-Yb-doped phosphate glasses, including sodium-a sodium-boron [19], sodium-titanium-strontium [20], zinc-aluminium [21] [22], lithium-lanthanum [23][24][25], potassium-barium-aluminum [26][27][28], a zinc-lead-alkali [29]. Moreover, the optimum Er 3+ -Yb 3+ concentration and p tent have been studied [10,15,23,30].…”

“…Multi-component phosphate glasses can promote the above-mentioned advantages of phosphate glass according to the desired application [15][16][17]. Thus, the interest in the development of new phosphate glasses can be also evidenced by the large number of studies that have been carried out on different types of Er-Yb-doped phosphate glasses, including sodiumaluminum [18], sodium-boron [19], sodium-titanium-strontium [20], zinc-aluminium [21], tellurofluoro [22], lithium-lanthanum [23][24][25], potassium-barium-aluminum [26][27][28], and aluminum-zinc-lead-alkali [29]. Moreover, the optimum Er 3+ -Yb 3+ concentration and phosphate content have been studied [10,15,23,30].…”

“…Thus, the interest in the development of new phosphate glasses can be also evidenced by the large number of studies that have been carried out on different types of Er-Yb-doped phosphate glasses, including sodiumaluminum [18], sodium-boron [19], sodium-titanium-strontium [20], zinc-aluminium [21], tellurofluoro [22], lithium-lanthanum [23][24][25], potassium-barium-aluminum [26][27][28], and aluminum-zinc-lead-alkali [29]. Moreover, the optimum Er 3+ -Yb 3+ concentration and phosphate content have been studied [10,15,23,30]. Er 3+ -doped glasses in the P 2 O 5 -SrO-Na 2 O system have been intensively investigated [20,31], and we demonstrated that the spectroscopic properties of the glasses can be impacted by adding a small amount of Al 2 O 3, TiO 2 or ZnO in the glass network.…”