利用1064nm波长的全固态连续Nd:YVO4激光器作为抽运源,采用周期调谐技术,对PPMgLN晶体准相位匹配的全固态连续波光学参量振荡器(CW OPO)宽波段连续调谐输出特性和伴随输出的受激拉曼(Raman)散射进行研究。实验在多周期PPMgLN晶体的基础上,采用连续工作模式、单谐振和外腔结构。实验结果表明,全固态CW OPO实现了信号光在1435.9～1670.2nm近红外波段和闲频光在4185.0～2970.4nm中红外波段连续调谐输出;在30.5μm周期处,抽运功率达到11.79W时,获得最大总输出功率4.29W,光光转换效率达到36.4%;在28.5、30.0、30.5μm处同时有受激Raman散射光伴随输出;增加Raman散射的损耗,可以提高CW OPO闲频光的输出功率,在3451nm处获得最大输出功率1.98 W,光光转换效率达到16.8%。实现了外腔式全固态CWPPMgLN OPO在信号光和闲频光波段的高功率连续调谐输出,伴随输出的Raman散射对CW OPO的闲频光有重要影响。 By using the all-solid-state continuous Nd: YVO4 laser with 1064nm wavelength as the pumping source and the CW tuning continuous-wave output characteristic of the all-solid-state continuous wave optical parametric oscillator (CW OPO) for PPMgLN crystal, Stimulated Raman scattering studies. Based on the multi-period PPMgLN crystal, the experiment adopts continuous mode, single resonance and external cavity structure. The experimental results show that the CW CW CWOO achieves continuous tuning output of the signal light in the mid-infrared (IR) band of 4135.9-1670.2 nm and idling at 4185.0-2970.4 nm. When pumping power reaches 11.79 W at 30.5 μm, The maximum total output power of 4.29W and the light-to-light conversion efficiency of 36.4% are obtained. Meanwhile, the stimulated Raman scattering light is accompanied with the output at 28.5, 30.0 and 30.5μm. Increasing the Raman scattering loss can increase the output power of CW OPO idler light , The maximum output power of 1.98 W at 3451 nm, the light conversion efficiency of 16.8%. The high power continuous tuning output of the CWLCMO OPN is achieved in the signal light and idler band, and the output Raman scattering has an important influence on the idler frequency of the CW OPO.