双钨酸钇钠晶体Cr^(4+):YAG被动调Q激光特性

Cr^(4+):YAG Q-Switched Laser Characteristics of Nd^(3+):NaY(WO_4)_2 Crystal

采用氙灯泵浦 ,首次实现了掺钕双钨酸钇钠 (Nd:NYW)晶体以 Cr4 + :YAG作为被动调 Q元件的1.0 6 4 μm激光运转 ,测量了不同小信号透过率及不同泵浦能量下激光单脉冲的输出能量、脉冲宽度和重复率 ,以 Gd COB为倍频晶体 ,首次实现了 Nd:NYW晶体的倍频调 Q运转 ,测量了 0 .5 3μm调

Using xenon flash lamp as pump source and Cr 4+ :YAG as passive Q switcher,we have performed the Q switched laser operation at 1.064 μm with the Nd 3+ :NaY(WO 4) 2 (Nd:NYW) crystal and measured the single pulse output energy,pulse width and repetition rate under different small signal transmission of Cr 4+ :YAG and,different reflectivity of output reflector.Meanwhile,using a GdCOB crystal as frequency doubler,we have realized first the passive Q switched laser running at 0.53 μm with the Nd:NYW crystal and measured the single pulse energy and pulse width.