标题:High-efficiency watt-level continuous-wave 2.9 mu m Ho, Pr:YLF laser
作者:Nie, Hongkun; Xia, Haiping; Shi, Bingnan; Hu, Jianxu; Zhang, Baitao; Yang, Kejian; He, Jingliang
作者机构:[Nie, Hongkun; Shi, Bingnan; Zhang, Baitao; Yang, Kejian; He, Jingliang] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R C 更多
通讯作者:Zhang, BT;Zhang, Baitao
通讯作者地址:[Zhang, BT]Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R China.
来源:OPTICS LETTERS
出版年:2018
卷:43
期:24
页码:6109-6112
DOI:10.1364/OL.43.006109
摘要:The bottleneck in Ho3+:I-5(6) -> (5)I(7)2.9 mu m laser emission, where the upper-level lifetime (I-5(6)) is significantly shorter than that of the lower-level (I-5(7)) lifetime, is overcome by co-doping Ho3+ and Pr3+ ions. A novel kind of Ho3+, Pr3+:YLIF4 (Ho, Pr:YLF) crystal is fabricated by optimizing the doping concentration ratios. By using as-grown Ho, Pr:YLF crystals with doping concentrations of 0.498 at. % Ho3+, 0.115 at. % Pr3+ and 0.489 at. % Ho3+, 0.097 at. % Pr3+ as gain media, both high-efficiency and continuous-wave 2.9 mu m laser operations are realized under 1150 nm fiber laser pumping, respectively. With the 0.498 at. % Ho3+, 0.115 at. % Pr3+:YLF crystal, a maximum output power of 1.27 W with a corresponding slope efficiency of 28.3% is yielded under a 4.48 W absorbed pump power, which is the highest output power among the Ho3+-doped 2.9 mu m lasers ever reported, to the best of our knowledge. The results well reveal the great potential of Ho, Pr:YLF crystals in developing high-power, high-efficiency 2.9 mu m mid-infrared lasers. (c) 2018 Optical Society of America
收录类别:EI;SCOPUS;SCIE
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85058726192&doi=10.1364%2fOL.43.006109&partnerID=40&md5=7ded2af668faf970898e51d79c4ebba0
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