抽运系统参数对全固态激光输出特性的影响  

Influence of pump system parameters on the all-solid state laser output

作　　者：方宁[1] 蔡薇洋 石豪柯 毛雅晴[1] 林悠悠 段延敏[1] 朱海永[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

出　　处：《激光与红外》2016年第3期300-303,共4页Laser & Infrared

基　　金：浙江省公益技术应用研究计划项目(No.2015C34017);温州市公益性科技计划项目(No.G20140057);浙江省新苗人才计划项目(No.2015R426026;2015R426019);温州大学实验室开放项目基金资助

摘　　要：为了优化全固态激光的抽运系统,研究抽运系统参数对激光输出特性的影响。以半导体激光端面抽运Nd∶YVO4晶体的全固体激光器设计为例,实验对比了采用不同波长(880 nm和808 nm)和不同光纤芯径(100μm和200μm)的半导体激光抽运源对激光输出功率、效率和光束质量等特性参数的影响。结果表明采用880 nm直接抽运技术结合采用小光纤芯径长焦深的抽运系统,可减少斯托克斯光子亏损,实现抽运光模式和激光腔模式的匹配来提高效率和激光输出光束质量。To optimize pump system of all solid state laser,the influence of pump system parameters on the all solid state laser output was investigated. Taking LD end pumping Nd ∶ YVO4 all solid state laser as an example,the influences of LD pumping sources on output power,conversion efficiency and beam quality are compared at different wavelengths of 880 nm and 808 nm and different fiber core diameters of 100 μm and 200 μm. The results show that the880 nm direct pumping technology combined with pump system with small fiber core diameter and deep focus length can improve laser efficiency and output beam quality by reducing the stokes photon losses,and can achieve the good mode matching between pumping light and laser cavity mode.

关 键 词：抽运系统 全固态激光 直接抽运 

分 类 号：TN248[电子电信—物理电子学]