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| 宽调谐高效率声光调Q Nd∶YVO4/PPMgLN光学参量产生器 | |
| 引用本文： | 林洪沂,檀慧明,崔铁成,刘丹丹.宽调谐高效率声光调Q Nd∶YVO4/PPMgLN光学参量产生器[J].激光与红外,2010,40(2):155-157. |
| 作者姓名： | 林洪沂 檀慧明 崔铁成 刘丹丹 |
| 作者单位： | 1. 中国科学院长春光学精密机械与物理研究所,吉林,长春,130033;中国科学院研究生院,北京,100039 2. 中国科学院长春光学精密机械与物理研究所,吉林,长春,130033 3. 63861部队,吉林,白城,137000 4. 长春理工大学理学院,吉林,长春,130022 |
| 基金项目： | 吉林省科技发展计划项目(No.200903053)资助 |
| 摘 要： | 利用声光调Q的Nd∶YVO4激光器作为泵浦源,在室温下,实现了PPMgLN晶体准相位匹配光参量输出。光参量阈值仅为0.5 W(20 kHz,75 ns);在泵浦光2.25 W(20 kHz,52 ns),PPMgLN极化周期31.4μm时,获得了426.1 mW 3.03μm中红外脉冲激光输出;同时获得646.7 mW1.64μm信号光输出,总光光转化效率达到47.6%。并且通过改变晶体的极化周期,实现了闲频光3.03～4.49μm,信号光1.40～1.64μm宽带可调谐输出。 |
| 关 键 词： | 光学参量产生器 PPMgLN晶体 中红外 可调谐 |
Widely tunable, high conversion efficiency, acousto-optic Q-switched Nd:YVO_4 /PPMgLN optical parametric generator |
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| LIN Hong-yi,TAN Hui-ming,CUI Tie-cheng,LIU Dan-dan.Widely tunable, high conversion efficiency, acousto-optic Q-switched Nd:YVO_4 /PPMgLN optical parametric generator[J].Laser & Infrared,2010,40(2):155-157. | |
| Authors: | LIN Hong-yi TAN Hui-ming CUI Tie-cheng LIU Dan-dan |
| Affiliation: | 1.Changchun Institute of Optics;Fine Mechanics and Physics;Chinese Academy of Sciences;Changchun 130033;China;2.Graduate University of Chinese Academy of Sciences;Beijing 100039;3.63861 Armed Forces of Chinese Baicheng;Baicheng 137000;4.School of Science;Changchun University of Science and Technology;Changchun 130022;China |
| Abstract: | We use an acousto-optic Q-switched Nd: YVO_4 laser as the pump source and obtain a Nd: YVO_4 / PPMgLN optical parametric generator (OPG).The threshold value of OPO system is only 0.5 W (20 kHz,75 ns)at 1064 nm.When the pump power is 2.25 W (20 kHz,52 ns),a maximum idle laser output power of 426.1 mW at 3.03 μm,and a signal laser output power of 646.7 mW at 1.64 μm have been achieved,and this corresponds to a whole optic-optic conversion efficiency of 47.6%.By shifting the PPMgLN crystal,the periods of the domain structure on the PPMgLN wafer can be changed,thus enabling a widely tunable mid-infrared spectrum of 3.03～4.49 μm,and signal wavelengths widely tunable in range of 1.40～1.64 μm. |
| Keywords: | optical parametric generator PPMgLN crystal mid-infrared tunable |
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