Effect of the concentration of Nd{sub}(3+) ions in KGd(WO{sub}4){sub}2:Nd{sup}(3+) crystals on laser characteristics

摘要

Active KGd(WO{sub}4){sub}2 : Nd{sup}(3+) elements used in laser engineering have typical concentrations of Nd{sup}(3+) ions of ～3 at. %. Our studies have shown that the optimal concentration is close to 4.5 at. %. This result is confirmed for active elements 3 mm in diameter and 50 mm long in two lasing modes at a wavelength of 1.067 μm and in the stimulated Raman scattering (SRS) self-conversion mode at 1.538 μm in a lamp-pumped laser.