光学晶体K_2Al_2B_2O_7用于全固态紫外激光器的理论研究  

Theoretical study of all solid-state ultraviolet laser on optical crystal K_2Al_2B_2O_7

作　　者：宋春荣[1] 赵建君[1] 刘进[1] 

机构地区：[1]军械工程学院基础部,石家庄050003

出　　处：《激光杂志》2007年第2期21-23,共3页Laser Journal

摘　　要：讨论了(KABO)晶体的折射率与群速指数随光波长参数的变化。基于非线性光学晶体的谐波理论,详细分析比较了KABO晶体倍频和三倍频的频率变换特性。得到了LD泵浦的调QNd:YAG激光器在Ⅰ类和Ⅱ类相位匹配下的倍频,三倍频、四倍频的相位匹配角、有效非线性系数、光波走离角等参量。Relation between light wavelength and refractive index, group velocity index are discussed On the basis of harmonic produced for nonlinear optical crystal, the properties of frequency conversion for second harmonic generation （ SHG）and third harmonic generation（THG） in KABO crystal are studied with elabo- rate analysis and comparison. The phase matching angle, effective nonlinear coefficient, walk - off angles of the SHG, THG and fourth harmonic generation （FHG） are obtained in the type -Ⅰ and type-Ⅱ phase matchin,, using all solid - state Q - switch laser

关 键 词：K2Al2B2O7晶体 倍频 三倍频 深紫外激光 

分 类 号：TN248[电子电信—物理电子学] O437[机械工程—光学工程]