强激光与粒子束2026，Vol.38Issue(5)：87-107,21.DOI:10.11884/HPLPB202638.250289
振荡-放大一体化光纤激光器研究进展
Research progress on oscillating-amplifying integrated fiber lasers
摘要
Abstract
Oscillating-amplifying integrated fiber lasers(OAIFLs)have emerged as a promising technology in high-power laser applications by combining the structural simplicity and superior anti-reflection capability of oscillators with the high efficiency of amplifiers.This review systematically summarizes recent progress from both theoretical and experimental perspectives.Theoretically,the focus is on advances in modeling mode instability and nonlinear effects,aiming to provide optimization guidelines for achieving high-power output.Experimentally,OAIFLs have successfully realized kilowatt-level narrow-linewidth and 10-kW-class broadband laser output in conventional wavelength bands.Beyond these bands,research primarily targets 1 050 nm and 1 018 nm fiber lasers.Furthermore,innovative dual-end output designs address core high-power challenges through distributed power extraction,significantly enhancing system power scalability.These advancements will accelerate broader applications in industrial processing,biomedical fields,and national defense.Analysis of current trends highlights key evolutionary pathways:benefiting from the integrated structure's unique advantages in nonlinear management and amplified spontaneous emission(ASE)suppression,operational wavelengths are expanding from the conventional 1 050-1 080 nm range toward shorter specialty bands;driven by demands in coherent beam combining and high-precision spectroscopy for high-brightness sources,output spectra are shifting from broadband to narrow-linewidth emission;gain media are evolving from conventional homogeneous fibers to specially designed geometric structures to simultaneously mitigate nonlinear effects and transverse mode instability(TMI)under high-power conditions;to meet needs in precision machining,spectroscopic sensing,and scientific research for lasers with high peak power and tailored temporal profiles,operational modes are diversifying from continuous-wave to varied pulsed regimes;and output configurations are advancing from simple single-end to sophisticated dual-end designs,effectively addressing key challenges in high-power laser delivery.Nevertheless,persistent limitations include insufficient universality of theoretical models and a lack of systematic experimental validation.Future research should emphasize two complementary dimensions.Theoretically,efforts must deepen model construction and mechanistic analysis—including refining temporal modeling,investigating TMI origins and nonlinear coupling mechanisms,and elucidating the physics of pump-timing-independent operation.Experimentally,the focus should be on continuously optimizing output performance—enhancing power and efficiency,improving spectral characteristics and beam quality,and advancing toward pulsed and supercontinuum generation capabilities.关键词
光纤激光/振荡-放大一体化光纤激光器/高功率/受激拉曼散射/模式不稳定Key words
fiber laser/oscillating-amplifying integrated fiber laser/high power/stimulated Raman scattering/mode instability分类
信息技术与安全科学引用本文复制引用
段梦,孟祥明,吴函烁,叶云,王鹏,张汉伟,王小林..振荡-放大一体化光纤激光器研究进展[J].强激光与粒子束,2026,38(5):87-107,21.基金项目
国家自然科学基金项目(62305390) （62305390）
湖南省杰出青年基金项目(2023JJ10057) （2023JJ10057）
国防科技大学自主创新科学基金项目(25-ZZCX-XXXJS-3,ZK24-15) （25-ZZCX-XXXJS-3,ZK24-15）
