一种基于MgO:PPLN晶体的紧凑高效型光学参量振荡器  

A compact and highly efficient optical parametric oscillators based on MgO:PPLN

作　　者：桂诗信 朱标 李正荣 胡秋瑞 GUI Shixin;ZHU Biao;LI Zhengrong;HU Qiurui(National Special Display Engineering Researeh Center,AVIC Huadong Photoelectric Company Limited,Wuhu Anhui 241002,China;Anhui Province Modern Key Lab for Imaging and Displaying Technology,AVIC Huadong Photoelectric Company Limited,Wuhu Anhui 241002,China)

机构地区：[1]国家特种显示工程技术研究中心、中航华东光电有限公司,安徽芜湖241002 [2]安徽省现代成像与显示技术重点实验室、中航华东光电有限公司,安徽芜湖241002

出　　处：《激光杂志》2018年第7期16-19,共4页Laser Journal

摘　　要：理论分析并设计了一种基于MgO：PPLN晶体的紧凑高效型光学参量振荡器。实验中利用808nm的激光二极管（LD）作为泵浦源,抽运Nd：YVO_4晶体产生波长为1064nm的激光,通过MgO：PPLN晶体的温度调谐,获得了3.14μm至3.43μm连续中红外激光输出。当MgO：PPLN晶体温度控制在80℃,泵浦功率为4.5W时,获得了最大功率为295m W的中红外激光输出,相应的空闲光转换效率为6.6%。控制中红外激光输出功率在295m W时,测得2h内的输出功率波动小于2%。A compact and highly efficient optical parametric oscillator has been theoretically analyzed and designed based on periodical MgO： PPLN crystal. In the experiments,the Nd：YVO_4 crystal was pumped by 808 nm laser diode（LD）,the continuous Mid-IR wavelength output from 3. 14-3. 43μm is achieved by controlling the temperature of MgO： PPLN crystal. MgO： PPLN crystal temperature was controlled at 80℃,pumping power was set at 4. 5 W,the maximum Mid-IR wavelength output power of 295 m W and the corresponding idler-optical conversion efficiency of6. 6% were achieved.Controlling the output power of the Mid-IR light at about 295 m W,the fluctuation of output power within 2 h was less than 2%.

关 键 词：非线性光学 光学参量振荡器 铌酸锂晶体 中红外激光 

分 类 号：O437.4[机械工程—光学工程]