基于氟碲酸盐光纤的高功率中红外超连续光源(特邀)  

High power mid-infrared supercontiuum light sources based on fluorotellurite glass fibers(invited)

作　　者：贾志旭[1] 姚传飞[1] 李真睿 贾世杰 赵志鹏 秦伟平[1] 秦冠仕[1] Jia Zhixu;Yao Chuanfei;Li Zhenrui;Jia Shijie;Zhao Zhipeng;Qin Weiping;Qin Guanshi(State Key Laboratory on Integrated Optoelectronics,College of Electronic Science and Engineering,Jilin University,Changchun 130012,China)

机构地区：[1]吉林大学电子科学与工程学院集成光电子学国家重点实验室,吉林长春130012

出　　处：《红外与激光工程》2018年第8期31-41,共11页Infrared and Laser Engineering

基　　金：国家自然科学基金(61527823;61378004;61605058;11474132);吉林省重点科技研发项目(20180201120GX);吉林省重大科技招标专项(20170203012GX);装备预研教育部联合基金(6141A02022413);吉林省优秀青年人才基金(20180520188JH)

摘　　要：高功率全光纤中红外超连续光源在基础科学研究、环境、医疗以及国防安全等领域有着重要应用。目前用于研制上述光源所用的非线性介质为氟化物玻璃光纤。但是氟化物玻璃光纤的损伤阈值低、化学稳性差,这在一定程度上影响了氟化物玻璃光纤在实用化高功率中红外光源研制中的应用。为了进一步提升中红外超连续光源的性能和研制实用化高功率中红外超连续光源,最近制备出了一种具有较好热稳定性和化学稳定性的氟碲酸盐玻璃(TeO_2-BaF_2-Y_2O_3,TBY),并利用其作为基质材料,设计制备出了一系列氟碲酸盐玻璃光纤。利用这些光纤作为非线性介质,研制出了光谱范围覆盖1.4~4μm的高相干超连续光源,光谱范围覆盖0.4~5.14μm的宽带超连续光源和平均功率大于10 W、光谱范围覆盖947~3 934 nm的超连续光源。High power all-fiber mid-infrared（MIR） supercontinuum（SC） light sources have attracted much attention for their wide applications in fundamental research, environments, medicine, and national defense security. Currently, such SC light sources are mainly based on fluoride glass fibers. While the relative low damage threshold and poor chemical durability of the fluoride glass fibers influenced their applications in practical high power MIR SC light sources. For further improving the performances of the MIR SC light sources and developing practical high power MIR SC light source, a fluorotellurite glass（TeO2-BaF2-Y2O3, TBY） with good thermal and chemical stabilities was developed, and fluorotellurite glass fibers was fabricated based on it. By using the fluorotellurite glass fibers as the nonlinear media, coherent SC generation from 1.4-4 μm and broadband SC generation from 0.4-5.14 μm were obtained in our experiments. Moreover, SC light source with an average power of 〉10 W was also obtained, and the spectral range covered 947-3 934 nm.

关 键 词：氟碲酸盐玻璃光纤 超连续光源 中红外 高功率 

分 类 号：TN212[电子电信—物理电子学]