KGW:Yb, Er single crystals growth for eye-safe lasers

The aim of the work was to determine the growth conditions of double tungstates crystals KGd(WO/sub 4/)/sub 2/ (KGW) doped with Er/sup 3+/ and Yb/sup 3+/ ions of various concentration and to examine these crystals in respect with their application as active media for lasers generating eyesafe radiation. Investigations of longitudinally pumped KGW:Yb,Er eye-safe microlasers with various Yb and Er ions concentration were carried out. Due to advantageous spectroscopic parameters of KGW:Er,Yb crystals and good thermal and mechanical resistance, those crystals were used both in CW as well as giant pulses train generation of the diode pumped "eye-safe" microlasers.