高光束质量连续波Tm,Ho:YAP激光器的研究  

Research on high beam quality continuous wave operation of a Tm,Ho:YAP laser

作　　者：田亮[1] 李林军[1,2] 于晓洋[1] 王微[1] 楚琳琳 吴海滨[1] 

机构地区：[1]哈尔滨理工大学测控技术与通信工程学院,哈尔滨150080 [2]黑龙江工程学院光电子技术研究所,哈尔滨150050

出　　处：《黑龙江大学自然科学学报》2016年第1期124-128,共5页Journal of Natural Science of Heilongjiang University

基　　金：国家自然科学基金资助项目(61378029);中国博士后基金资助项目(2014M561366);黑龙江省博士后出站启动金资助项目(LBH-Q14142)

摘　　要：研究了一种二极管激光器泵浦的高光束质量的Tm,Ho:YAP激光器。选用中心输出波长为793.6 nm的二极管激光器作为泵浦源;c轴切割的Tm,Ho∶YAP晶体作为激光晶体,激光晶体中Tm3+掺杂浓度为5 at.%、Ho3+掺杂浓度为0.5 at.%,且采用液氮对激光增益介质进行制冷。在实验中,改变激光器的谐振腔参数及泵浦参数,Tm,Ho:YAP激光器获得了13.1 W的输出功率,相应的斜率效率和光光转换效率分别为40.9%和38.4%,输出波长为2 044 nm;选用刀口法对Tm,Ho:YAP激光器的光束质量进行了测量,获得激光光束质量的M2≈1.1。A high beam quality Tm,Ho：YAP laser pumped by the diode laser is reported.The diode laser with the center wavelength of 793.6 nm is chosen as the pumping source.Moreover,a c-cut Tm,Ho：YAP crystal is used as the laser crystal,and 5 at.% Tm^3＋ and 0.5 at.% Ho^3＋ are co-doped in the laser crystal.The liquid nitrogen is used to cool the laser crystal.The parameters of the resonant cavity and the pumping are changed,a 13.1 W output power will be acquired from the Tm,Ho：YAP laser.In addition,the corresponding slope efficiency and the optical-to-optical conversion efficiency of the Tm,Ho：YAP laser are 40.9% and 38.4% respectively.The output wavelength of the Tm,Ho：YAP laser is2 044 nm.The beam quality M^2≈1.1 is obtained from the Tm,Ho：YAP laser by knife-edge method.

关 键 词：谐振腔参数 输出功率 转换效率 光束质量 Tm Ho∶YAP晶体 

分 类 号：TN248.1[电子电信—物理电子学]