High-power and high optical conversion efficiency diode-end-pumped laser with multi-segmented Nd：YAG/Nd：YVO-4  

作　　者：Meng-Yao Wu Peng-Fei Qu Shi-Yu Wang SEl Zhen Guo De-Fang Cai Bing-Bin Li 吴梦瑶;屈鹏飞;王石语;过振;蔡德芳;李兵斌(School of Physics and Optoelectonic Engineering,Xidian University,Xi＇an 710071,China;Xi＇an Institute of Electro-Mechanical Information Technology Research,Xi＇an 710065,China)

机构地区：[1]School of Physics and Optoelectonic Engineering, Xidian University, Xi' an 710071, China [2]Xi'an Institute of Electro-Mechanical Information Technology Research, Xi'an 710065, China

出　　处：《Chinese Physics B》2018年第9期306-310,共5页中国物理B（英文版）

基　　金：Project supported by the National Defense Pre-Research Foundation of China(Grant No.9140A020105)

摘　　要：A novel flat-flat resonator consisting of two crystals（Nd：YAG ＋ Nd：YVO4） is established for power scaling in a diode-end-pumped solid-state laser. We systematically compare laser characteristics between multi-segmented（Nd：YAG ＋ Nd：YVO4） and conventional composite（Nd：YAG ＋ Nd：YAG） crystals to demonstrate the feasibility of spectral line matching for output power scale-up in end-pumped lasers. A maximum continuous-wave output power of 79.2 W is reported at 1064 nm, with Mx2= 4.82, My2= 5.48, and a pumping power of 136 W in the multi-segmented crystals（Nd：YAG ＋ Nd：YVO4）. Compared to conventional composite crystals（Nd：YAG ＋ Nd：YAG）, the optical-optical conversion efficiency of multi-segmented crystals（Nd：YAG ＋ Nd：YVO4） from 808 nm to 1064 nm is enhanced from 30% to 58.8%,while the laser output sensitivity as affected by the diode-laser temperature is reduced from 55% to 9%.A novel flat-flat resonator consisting of two crystals（Nd：YAG ＋ Nd：YVO4） is established for power scaling in a diode-end-pumped solid-state laser. We systematically compare laser characteristics between multi-segmented（Nd：YAG ＋ Nd：YVO4） and conventional composite（Nd：YAG ＋ Nd：YAG） crystals to demonstrate the feasibility of spectral line matching for output power scale-up in end-pumped lasers. A maximum continuous-wave output power of 79.2 W is reported at 1064 nm, with Mx2= 4.82, My2= 5.48, and a pumping power of 136 W in the multi-segmented crystals（Nd：YAG ＋ Nd：YVO4）. Compared to conventional composite crystals（Nd：YAG ＋ Nd：YAG）, the optical-optical conversion efficiency of multi-segmented crystals（Nd：YAG ＋ Nd：YVO4） from 808 nm to 1064 nm is enhanced from 30% to 58.8%,while the laser output sensitivity as affected by the diode-laser temperature is reduced from 55% to 9%.

关 键 词：diode-pumped solid-state laser multi-segmented crystals（Nd：YAG ＋ Nd：YVO4） spectral line matching diode-laser temperature 

分 类 号：TN248[电子电信—物理电子学]