摘要
基于产生3μm中红外激光的Er^(3+)能量转换过程与能级体系,建立了掺铒氟化物光纤激光器的速率方程和传输方程,系统地研究了泵浦结构和光纤长度对输出功率、斜率效率以及腔内泵浦和激光功率分布的影响,为后续的实验提供理论依据。仿真确定了小泵浦功率的光纤激光器理想的光纤长度为4~8 m,最终实验选择4.7 m光纤完成了中红外掺铒氟化物光纤激光器连续激光输出光路的搭建,在泵浦功率为5 W、中心波长为2.797μm处实现了最大功率1.038 W、斜率效率20.4%的连续激光输出。
Based on the energy conversion and energy level system of Er^(3+)for generating 3µm mid-infrared laser,rate equations and transmission equations for erbium doped fluoride fiber laser were established.The study systematically investigated the effects of pump structure and fiber length on output power,slope efficiency,as well as the distribution of pump and laser power within the cavity,providing a theoretical foundation for subsequent experiments.The ideal fiber length for the fiber laser with low pump power was determined through simulations,falling in the range of 4-8 m.Ultimately,in the experimental setup,a 4.7 m fiber was chosen for the construction of a continuous-wave mid-infrared erbium-doped fluoride fiber laser.This setup achieved a maximum output power of 1.038 W at a pump power of 5 W and a central wavelength of 2.797µm,with a slope efficiency of 20.4%.
作者
杨雪莹
刘永岩
田颖
蔡恩林
李兵朋
徐时清
张军杰
黄飞飞
YANG Xueying;LIU Yongyan;TIAN Ying;CAI Enlin;LI Bingpeng;XU Shiqing;ZHANG Junjie;HUANG Feifei(Institute of Optoelectronic Materials and Devices,Hangzhou College of Optics and Electronic Technology,China Jiliang University,Hangzhou 310018,China;Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800,China;Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai 201210,China;University of Chinese Academy of Sciences,Beijing 101408,China)
出处
《发光学报》
EI
CAS
CSCD
2024年第2期334-342,共9页
Chinese Journal of Luminescence
基金
浙江省自然科学基金(LZ21F050002,LZ22E020001)
国家自然科学基金(62374153,62075204,U190920054)
浙江省“高层次人才特殊支持计划”科技创新领军人才项目(2021R52032)
浙江省高校基本科研业务费(2023YW93)。
关键词
中红外
氟化物光纤激光器
速率方程
连续激光
mid infrared
erbium-doped fluoride fiber laser
rate equation
CW laser
