LDA抽运Nd:YAG/KTP腔内和频589 nm连续波激光器

报道了一种激光二极管阵列（LDA）抽运Nd:YAG双波长和频黄光激光器黄激光是由Nd:YAG晶体的1064 nm和1319 nm谱线腔内和频产生以KTP为和频晶体，采用Ⅱ类临界相位匹配，在12 W的808 nm抽运功率下，获得了最高功率为430 mW连续波基横模的589 nm黄激光输出，光光转换效率为3.6%，光束质量因子M2<1.2实验结果表明采用激光二极管阵列抽运Nd:YAG/KTP腔内和频技术是获得黄激光的高效方法，并可以应用到其它激光增益介质的两条谱线进行腔内和频，获得更多不同颜色的单谱线激光输出

Laser-diode Array Pumped Nd: YAG/KTP Continuous Wave 589 nm Laser with Intracavity Sum-frequency Mixing

A laser diode array pumped Nd∶YAG laser that generates simultaneous laser action at wavelength 1064 nm and 1319 nm was reported.Nonlinear optical crystal KTP was used as intracavity sum frequency crystal.Using type Ⅱ critical phase-match,a yellow laser at 589 nm was obtained by 1064 nm and 1319 nm intracavity sum-frequency mixing.With an incident pump laser of 12 W,the maximum output power of 430 mW was obtained.The optical-to-optical conversion was up to 3.6%.The M~2 beam quality factor of the sum-frequency mixed yellow laser was less than 1.2.Experimental results show that the intracavity sum-frequency mixing is an effective method for obtaining 589 nm laser.Also it can be applied to other transition wavelengths in other laser crystals to obtain more all-solid-state lasers with different wavelengths.