Optical absorption and emission intensities of Nd3+ ion in KLu(WO4)2 crystal were investigated.Based on the Judd-Offelt theory,we calculated the following spectral parameters:phenomenological intensity parameters Ω2=5.567x10-2~,,(24=3.597×10-20,and Ω6=3.800×10-20 cm2.The radiative lifetime of levels 4F3/2 was 182.58 μs.The fluorescence branching ratio for the transition 4F3/2→4I11/2 was 46.98%.In addition,the radiative transition probabilities AJ,J',oscillator strengths PJ,J' and the values of integrated emission cross sections were also calculated.In comparison with those of other laser crystals,these results indicated that Nd:KLuW is a promising efficient laser material.
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