内腔中红外低阈值PPMgLN光学参量振荡器  

Low threshold mid-infrared intracavity optical parametric oscillator based on PPMgLN

作　　者：林洪沂[1,2] 许英朝[1,2] 黄晓桦[1,2] 苏少昌[3] 檀慧明[3] 

机构地区：[1]厦门理工学院数理系,福建厦门361024 [2]厦门理工学院光电工程技术研究中心,福建厦门361024 [3]中国科学院长春光学精密机械与物理研究所,吉林长春130033

出　　处：《激光与红外》2011年第10期1098-1100,共3页Laser & Infrared

基　　金：厦门理工学院科学技术研究项目(No.YKJ1011R);福建省自然科学基金青年项目(No.2010J05144);福建省教育厅A类项目(No.JA10248)资助

摘　　要：在理论上对内腔连续单谐振光学参量振荡器(ICSRO)的运转特性进行了简要的分析,并在实验采用LD泵浦的连续Nd∶YVO4激光器作为泵浦源,实现了PPMgLN晶体准相位匹配,获得了低阈值高效率ICSRO。光学参量器的阈值仅为3.1 W(808 nm);在泵浦光5 W时,获得了370 mW连续中红外激光输出,540 mW信号光输出,总的光光转化效率达到18.2%。We analyze operating characteristics of CW intracavity singly-resonant optical parametric oscillator（ICSRO）theoretically.Furthermore,using the quasi-phase-matched periodically poled MgO-doped lithium niobate crystal（PPMgLN）as the nonlinear converter,we have accomplished low threshold and highly efficient ICSRO,driven by compact and efficient diode-end-pumped CW Nd∶YVO4 laser.The threshold of ICSRO system is only 3.1 W at 808 nm.A maximum idle output power of 370 mW and a maximum signal output power of 540 mW have been achieved when the pump power is 5 W and it corresponds to a whole optic-optic conversion efficiency of 18.2%.

关 键 词：光学参量振荡器 PPMGLN晶体 连续中红外 可调谐激光 

分 类 号：TN248.1[电子电信—物理电子学]