激光技术2016，Vol.40Issue(3)：409-412,4.DOI:10.7510/jgjs.issn.1001-3806.2016.03.023
周期性极化掺镁铌酸锂晶体光参量振荡研究
Research of optical parametric oscillation of periodically poled MgO-doped LiNbO3 crystal
摘要
Abstract
In order to achieve high conversion rate of 3μm infrared laser output from an optical parametric oscillation , by using the applied pulse electric field method , periodically poled grating of 31.2μm was prepared on MgO-doped( mole fraction of 0.05) lithium niobate crystal with the thickness of 1mm.The relationship between idler wavelength and temperature when periodically poled MgO-doped LiNbO3 pumped by 1064nm pulsed laser was studied by theoretical calculation and simulation . Acousto-optic Q-switched Nd∶YAG laser with the wavelength of 1064 nm was used as the fundamental source to operate optical parametric oscillation experiment with pulse width of 200ns and repetition rate of 20kHz.When pulse input power is 5.567W at the temperature of 80℃, idler output power of 1.141W was obtained with output wavelength of 3μm.The maximum conversion efficiency from incident pump power to idler output was 20.1%.The results show that this method of preparation by periodically poled lithium niobate optical parametric oscillation has high optical conversion efficiency .关键词
非线性光学/光参量振荡/周期性极化掺镁铌酸锂晶体/准相位匹配Key words
nonlinear optics/optical parametric oscillation/periodically poled MgO-doped LiNbO 3/quasi phase match分类
数理科学引用本文复制引用
曾江斌,陈怀熹,梁万国,缪龙,周煌,冯新凯,邹小林,李广伟..周期性极化掺镁铌酸锂晶体光参量振荡研究[J].激光技术,2016,40(3):409-412,4.基金项目
中国科学院科研装备研制资助项目 （）
