强激光与粒子束2026，Vol.38Issue(5)：125-144,20.DOI:10.11884/HPLPB202638.250498
面向全光纤化的氟化物基中红外激光无源器件研究进展(特邀)
Research progress on mid-infrared fiber devices based on fluoride glasses(invited)
摘要
Abstract
Mid-infrared(MIR,2-5 μm)fiber laser technology has attracted increasing attention due to its unique advantages in molecular spectroscopy,biomedical applications,advanced manufacturing,and defense.The development of high-performance all-fiber MIR laser systems strongly relies on reliable passive fiber devices,particularly fiber combiners and fiber Bragg gratings(FBGs)based on fluoride glass fibers.This review systematically summarizes the recent progress of MIR fluoride fiber-based combiners and FBGs from the perspectives of material properties,fabrication techniques,device performance,and system integration.The intrinsic advantages of fluoride glasses,including low phonon energy and broad transmission window,are discussed alongside their limitations in thermal stability and environmental durability.Various combiner configurations and grating inscription methods are systematically compared in terms of coupling efficiency,spectral characteristics,and power handling capability,with femtosecond laser direct writing and phase mask techniques representing the main approaches for FBG fabrication.Current challenges,including fabrication complexity,limited repeatability,insufficient power tolerance,and difficulties in low-loss integration,are analyzed.Finally,future development directions toward improved material engineering,fabrication standardization,and device integration are outlined,aiming to promote the transition of MIR fiber devices from laboratory research to practical applications.关键词
氟化物光纤/中红外激光器/光纤合束器/光纤布拉格光栅/高功率激光Key words
fluoride fiber/mid-infrared laser/fiber combiner/fiber Bragg grating/high-power laser分类
数理科学引用本文复制引用
姜明瑞,罗鸿禹,魏宇航,文婷,李剑峰..面向全光纤化的氟化物基中红外激光无源器件研究进展(特邀)[J].强激光与粒子束,2026,38(5):125-144,20.基金项目
国家自然科学基金项目(62575051) （62575051）
装备预研教育部联合基金项目(8091B042228) （8091B042228）
四川省自然科学基金项目(2023NSFSC1964、2023NSFSC0033) （2023NSFSC1964、2023NSFSC0033）
西南技术物理研究所稳定支持专项项目(2024-WZ-9) （2024-WZ-9）
