In this paper, the spectral and luminescence properties of a series of KGd- (WO4)2 powder samples codoped with different concentrations of Er3+ and Yb3+ were reported, and the best doping concentrations were found to be 1at% Er3+ and 10at% Yb3+ for attaining the strongest intensity. The Er3+/Yb3+ codoped KGd(WO4)2 crystal with good optical quality was grown by the TSSG method and the growth conditions were presented. The unpolarized ab- sorption and emission spectra of the crystal have been measured. The strong absorption peak is at 980 nm with a FWHM of 65 nm, and the emission peak is at 1536 nm when pumped by 976 nm. The fluorescence lifetime of manifold 4I13/2 is estimated to be 4.5 ms at room temperature. Investigations of Er,Yb:KGW crystal have shown it to have necessary combination of properties to get an effective generation of ~1.54 μm eye-safe radiation with laser diode pumping. In this paper, the spectral and luminescence properties of a series of KGd- (WO4) 2 powder samples codoped with different concentrations of Er3 + and Yb3 + were reported, and the best doping concentrations were found to be 1 at% Er3 + and 10 at% Yb3 + for attaining The strongest intensity. The Er3 + / Yb3 + codoped KGd (WO4) 2 crystal with good optical quality was grown by the TSSG method and the growth conditions were presented. The unpolarized ab- sorption and emission spectra of the crystal have been measured. The strong absorption Peak is at 980 nm with a FWHM of 65 nm, and the emission peak is at 1536 nm when pumped by 976 nm. The fluorescence lifetime of manifold 4I13 / 2 is estimated to be 4.5 ms at room temperature. Investigations of Er, Yb: KGW crystal have shown it to have necessary combination of properties to get an effective generation of ~ 1.54 μm eye-safe radiation with laser diode pumping.