Diode-pumped wavelength-switchable visible Pr^(3+):YLF laser and vortex laser around 670 nm

作     者：Xiuji Lin Qichen Feng Yao Zhu Shuaihao Ji Bo Xiao Huiying Xu Wensong Li Zhiping Cai Xiuji Lin;Qichen Feng;Yao Zhu;Shuaihao Ji;Bo Xiao;Huiying Xu;Wensong Li;Zhiping Cai

作者机构：Department of Electronic EngineeringSchool of Electronic Science and Engineering(National Model Microelectronics College)Xiamen UniversityXiamen 361005China 

出 版 物：《Opto-Electronic Advances》 (光电进展（英文）)

年 卷 期：2021年第4卷第4期

页      面：27-34页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China(Nos.11674269 61975168). 

主　　题：high-power laser visible laser switchable laser deep-red laser 

摘      要：Here we developed a novel wavelength-switchable visible continuous-wave(CW)Pr^(3+):YLF laser around 670 nm.In single-wavelength laser operations,the maximum output powers of 2.60 W,1.26 W,and 0.21 W,the maximum slope efficiencies of 34.7%,27.3%,and 12.3%were achieved with good beam qualities(M^(2)1.6)at 670.4 nm,674.2 nm,and 678.9 nm,respectively.Record-high output power(2.6 W)and record-high slope efficiency(34.7%)were achieved for the Pr^(3+):YLF laser operation at 670.4 nm.This is also the first demonstration of longer-wavelength peaks beyond 670 nm in the^(3)P_(1)→^(3)F_(3)transition of Pr^(3+):YLF.In multi-wavelength laser operations,the dual-wavelength lasings,including 670.1/674.8 nm,670.1/679.1 nm,and 675.0/679.4 nm,were obtained by fine adjustment of one/two etalons within the cavity.Furthermore,the triple-wavelength lasings,e.g.672.2/674.2/678.6 nm and 670.4/674.8/679.4 nm,were successfully demonstrated.Moreover,both the first-order vortex lasers(LG_(0)^(+1)and LG_(0)^(-1)modes)at 670.4 nm were obtained by off-axis pumping.