Influence of doping concentration on the power performance of diode-pumped continuous-wave Tm/sup 3+/:YAlO/sub 3/ lasers

Spectroscopic investigation of Tm3+:TeO2–WO3 glass

“…In obtaining s em , spontaneous emission rates A(J,J 0 ) based on mean intensity parameters (see Table 2) were used. Comparing the measured emission cross section value with those of other Tm 3+ -doped telluride glasses [6,9] and Tm 3+ -doped crystals [21,22], higher values for Tm 3+ :(0.85)TeO 2 -(0.15)WO 3 reveal the potential of this glass for laser and amplifier systems.…”

Anisotropy of thermal and spectral characteristics in Tm:YAP laser crystals

“…This makes the laser potentially very efficient with high quantum efficiency. Therefore, Tm:YAP crystals have gained significant interest in the last several years [5][6][7][8][9][10][11][12]. To our knowledge, most of the research results are focused on the crystal growth [5], unpolarized spectra under different annealing conditions [6] and laser output properties [7][8][9][10][11][12].…”

Czochralski growth of YAP crystal doped with high Tm concentration

“…But to our knowledge, most of the research results were obtained from the Tm concentration of $4 at%. [1,[3][4][5][6][7][8]17]. As we know, the ion radius of Tm 3+ ion (0.99 Å ) is similar to that of Y 3+ ion (1.02 Å ), and the length of Y-O bond in YAP is larger than that in YAG.…”