稀土掺杂氟化物中红外玻璃及光纤激光器研究进展(特邀)  

Research Progress on Rare Earth Doped Fluoride Glass and Fiber Lasers in the Mid-Infrared Region(Invited)

作　　者：董宇[1] 王鹏飞[1] 贾世杰 张志[1] 程卓维 Dong Yu;Wang Pengfei;Jia Shijie;Zhang Zhi;Cheng Zhuowei(Key Laboratory of In-Fiber Integrated Optics,College of Physics and Optoelctronic Engineering,Harbin Engineering University,Harbin 150001,Heilongjiang,China)

机构地区：[1]哈尔滨工程大学物理与光电工程学院纤维集成光学教育部重点实验室,黑龙江哈尔滨150001

出　　处：《光学学报(网络版)》2024年第6期4-20,共17页Acta Optica Sinica(Online)

基　　金：国家自然科学基金(62225502)

摘　　要：3~5μm中红外波段位于大气透射窗口,包含许多气体分子的吸收带,因此该波段激光在激光通信、生物医学、材料加工、军事对抗以及航天航空等领域受到广泛关注。在众多类型激光器中,光纤激光器是最便携,能够输出稳定、高效中红外激光的优良光源。中红外光纤材料中氟化物玻璃具有声子能量低、透过率高、稀土离子溶解度高、透过窗口宽等优点,可以作为中红外激光器增益材料。氟化物玻璃分为氟化锆、氟化铝和氟化铟等玻璃。中红外玻璃光纤已实现4.3μm荧光输出,是目前在氟化物光纤中获得的最长波长中红外荧光输出。本文对氟化物玻璃组分及玻璃结构研究发展现状进行了梳理,并着重介绍了笔者团队自研的具有良好稳定性和高激光损伤阈值的氟铝基、氟锆基和氟铟基玻璃及光纤,报道了笔者团队在中红外波段激光输出方面的研究进展。The 3‒5μm mid-infrared band situated within the atmospheric transmission window and encompassing numerous absorption bands of gas molecules,has drawn extensive concern in the fields such as laser communication,biomedical,material processing,military confrontation,and aerospace.Among diverse types of lasers,fiber lasers stand out for their portability and stability,thus serving as an excellent laser light source.Mid-infrared fiber materials,such as fluoride glass,have the advantages of low phonon energy,high transmittance,high solubility of rare earth ions,and a wide transmission window,which can be used as gain materials for mid-infrared lasers.Fluoride glasses are classified into fluorozirconate,fluoroaluminate,and fluoroindate glasses.Mid-infrared glass fibers have achieved 4.3μm fluorescence output,representing the longest wavelength mid-infrared fluorescence output obtained in fluoride fibers to date.This study reviews the current research and development of fluoride glass composition and glass structure,and focuses on introducing the fluoroaluminate,fluorozirconate,and fluoroindate glasses and fibers developed by our team,which have good stability and high laser damage threshold.It also reports the progress in mid-infrared laser output achieved by our team.

关 键 词：氟化物玻璃 氟铟基光纤 中红外激光 氟铝基光纤 氟锆基光纤 光纤激光器 

分 类 号：O43[机械工程—光学工程]