高功率连续掺铥光纤激光器研究进展及展望  

Research Progress and Prospects of High Power Continuous Thulium Doped Fiber Lasers

作　　者：刘树婷 余婷[2,3] 贺振兴 叶锡生 戴博[1] LIU Shuting;YU Ting;HE Zhenxing;YE Xisheng;DAI Bo(School of Optical-Electrical and Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;Laboratory of High Power Fiber Laser Technology,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences;Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences:Shanghai 201800,China)

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093 [2]中国科学院上海光学精密机械研究所高功率光纤激光技术实验室 [3]上海市全固态激光器与应用技术重点实验室,上海201800

出　　处：《现代应用物理》2023年第2期35-46,共12页Modern Applied Physics

摘　　要：2μm高功率掺铥光纤激光器(thulium doped fiber lasers, TDFL)在激光测距、激光雷达及医疗检测等领域有重要应用。本文主要梳理了高功率连续TDFL的国内外最新研究进展,介绍了连续TDFL的发展现状,总结了高功率TDFL功率提升的主要限制因素,并从热效应、非线性效应及模式不稳定性3个方面进行了分析。最后,提出采用新型泵浦结构、优化增益光纤的结构设计、研制高品质光纤耦合器和高亮度泵浦源等方法可进一步提高2μm高功率TDFL掺铥光纤激光器的综合输出性能。This paper mainly reviews the latest research progress of high power continuous thulium doped fiber laser(TDFL)at home and abroad,introduces the current development status of continuous TDFL,summarizes the main limiting factors for power improvement of high power TDFL,and analyzes them from three aspects:thermal effects,nonlinear effects,and mode instability.Finally,it is proposed that the performance of 2μm high power TDFL can be further improved by exploring a novel pump structure,optimizing the structure design of gain fiber,and developing high quality fiber coupler and high brightness pump sources.

关 键 词：掺铥光纤激光器 2μm波段 连续激光 高功率 

分 类 号：TN248[电子电信—物理电子学]