Nd3+-doped silica glass and fiber prepared by modified sol-gel method

作     者：Yinggang Chen Zhiquan Lin Yafei Wang Meng Wang Lei Zhang Yan Jiao Hehe Dong Shikai Wang Chunlei Yu Lili Hu 陈应刚;林治全;王亚飞;王孟;张磊;焦艳;董贺贺;王世凯;于春雷;胡丽丽

作者机构：Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China University of Chinese Academy of SciencesBeijing 100039China Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesHangzhou 310024China 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2022年第20卷第9期

页      面：38-42页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：supported by the National Natural Science Foundation of China(NSFC)(No.61975216) Zhejiang Postdoctoral Research Project(No.ZJ2020070) 

主　　题：Nd3+-doped silica sol-gel doping homogeneity. 

摘      要：Large-size Al^(3+)/Nd^(3+)co-doped silica glass with 5000 ppm Nd^(3+)and 50,000 ppm Al^(3+)doping concentrations was prepared by the modified sol-gel method combined with high-temperature melting and molding *** probe microanalyzer tests indicated that high doping homogeneity was achieved with this sample preparation *** spectral properties of the Nd^(3+)ions were ***^(3+)-doped silica fiber(NDF)with a core-to-clad ratio of 20/125μm was drawn from the preform with the Al^(3+)/Nd^(3+)co-doped silica glass as the *** the laser oscillation experiment,a maximum output power of 14.6 W at 1.06μm with a slope efficiency of 39.6%was obtained from the NDF pumped by a commercial808 nm laser *** the best of our knowledge,this is the highest laser power reported for an NDF operated at 1060 nm and prepared by a non-chemical vapor deposition *** the master oscillator power amplifier experiment,a maximum power of 16.6 W corresponding to a slope efficiency of 30.5%at 1061 nm was also *** laser performance of the NDF exhibited the great advantages and potential of the modified sol-gel method in fabricating Nd^(3+)-doped silica glass for a new type of NDFs like large mode area fibers and fibers with large diameter ratio of core/cladding.