基于PPMgLN的中红外光学参量振荡器研究  

Study on mid-infrared optical parametric oscillator based on periodically poled MgO∶LiNbO_3

作　　者：柴燕[1] 

机构地区：[1]四川文理学院物理与工程技术系,四川达州635000

出　　处：《激光与红外》2013年第9期1055-1058,共4页Laser & Infrared

摘　　要：对一种基于被动调Q周期极化MgO∶LiNbO3(PPMgLN)中红外光学参量振荡器(OPO)的进行了研究。利用Nd∶YVO4/Cr4+∶YAG被动调Q激光器作为泵浦源,输出得到了1.78 W波长为1064 nm的泵浦光,其脉冲宽度和重复频率分别为10 ns和50 kHz,在倍频晶体PPMgLN作用下,输出得到了波长为3.2μm功率为360 mW闲频光,光光转换效率达到了20%。周期极化MgO∶LiNbO3(PPMgLN)晶体的极化周期范围为29μm到31.5μm。通过周期调谐和温度调谐的联合作用,光学参量振荡器(OPO)能够在波长范围3.0～4.0μm内进行调谐。An mid-infrared optical parametric oscillator based on passively Q-switched periodically poled Mgo ∶ LiZbO3（PPMgLN） was studied.Nd ∶ YVO4 / Cr4 ＋∶ YAG passively Q-switched laser is used as pump sources,the output of 7.78W at 1064nm is obtained,and the pulse width is 10ns and the repetition is 50 kHz.Under the effect of frequency doubling crystal PPMgLN,the output of 360 mw idle light at 3.2 μm is obtained,an optical-to-optical efficiency is 20%.The periodically poled range of the PPMgLN crystal is from 29μm to 31.5μm.The OPO could be tuned over 3.0 ~ 4.0μm in the combination of period tuning and temperature tuning.

关 键 词：光学参量振荡器 被动调Q PPMGLN 激光器 

分 类 号：TN248.1[电子电信—物理电子学]