LD端面抽运Nd∶YAG 1338nm单波长激光器  

LD end-pumped Nd∶YAG single-wavelength laser at 1338 nm

作　　者：甘海波[1] 廖小青[1] 石豪珂 阮秀凯[1] 袁先漳[1] 王鸿雁 朱海永[1] 段延敏[1] 

机构地区：[1]温州大学物理与电子信息工程学院,浙江温州325035 [2]青岛海泰光电技术有限公司,山东青岛266100

出　　处：《激光与红外》2017年第2期179-182,共4页Laser & Infrared

基　　金：国家自然科学基金项目(No.61505147);浙江省公益技术应用研究项目(No.2017C34008;2015C35017);浙江省新苗人才计划项目项目;温州大学实验室开放项目资助

摘　　要：通过LD端面抽运Nd∶YAG激光腔镜膜系的合理设计,抑制Nd∶YAG晶体最强跃迁对应的1064 nm波长和相邻的1319 nm波长的激光振荡,成功实现了1338 nm单波长激光输出。实验中对比了平平和平凹腔型,研究了连续运转和声光调Q模式下的激光输出。连续运转模式时,在12.9 W的抽运功率下,获得了最高3.25 W的1338 nm激光输出;声光调Q模式下,1338 nm激光的平均输出功率和脉冲宽度随着重复频率的减小而下降。在12.9 W的抽运功率下,当声光调Q重复频率从15 k Hz减少到5 k Hz,平均输出功率由2.8 W降低到1.9 W,对应的脉冲峰值功率由1.7 k W升高到5.4 k W。Through reasonable design of LD end pumped Nd ：YAG laser cavity mirror film,laser oscillation of the strongest transition of 1064 nm and the adjacent 1319 nm line were simultaneously suppressed,and single wavelength laser output at 1338nm was achieved successfully.In the experiment,the plane-plane and plane-concave cavities were compared.The output of 1338 nm single wavelength laser at the continuous-wave mode and the acousto-optic Q-switched mode were studied.For continuous-wave mode,the maximum output power of 3.25 W was obtained at the in-cident pump power of 12.5 W.For the acousto-optic Q-switched mode,both the average output power and pulse width decreased with the reducing of pulse repetition frequency.Under the incident pump power of 12.9 W,the average out-put power reduced from 2.8 W to 1.9 W when pulse repetition frequency reduced from 15 kHz to 5 kHz,and the cor-responding pulse peak power increased from 1.7 kW to 5.4 kW.

关 键 词：Nd∶YAG晶体 1338 nm激光 端面抽运 

分 类 号：TN248[电子电信—物理电子学]