Anisotropic absorption and luminescence and quasi-CW laser operation of Eu3+:KGd(WO4)2 monoclinic crystal

Present paper is devoted to the study of spectroscopic properties and laser potential of Eu-doped potassium gadolinium tungstate single crystal grown by TSSG technique (from the flux). It was motivated by recent realization of pulsed Eu:KGd(WO
₄
)
₂
laser. As a result, quasi-cw Eu:KGd(WO
₄
)
₂
laser operating at room temperature was demonstrated for the first time.