高功率光纤熔融器件设计综述  

Study on design of high-power fiber fused components

作　　者：任建国[1] 申子卿[1] 张维安[2] 杨华勇[1] 

机构地区：[1]国防科技大学光电科学与工程学院,湖南长沙410073 [2]军械工程学院光学与电子工程系,河北石家庄050003

出　　处：《激光与红外》2012年第5期475-480,共6页Laser & Infrared

基　　金：国家自然科学基金(No.61077019)资助

摘　　要：近年来,高功率光纤激光发展迅猛,基于光纤熔融器件的全光纤激光系统可以更好地发挥出光纤激光所固有的体积小、质量轻、稳定性和可靠性高等优势。高功率条件下,器件局部发热可能给器件带来灾难性的故障。决定器件高功率承受能力的不是传输功率,而是器件处理光功率损耗的能力。本文详细分析了单模器件和多模器件中的损耗产生机制,指出了低损耗设计的实现方法。减小器件封装的热阻也可以提高器件的功率耐受能力,文中对封装的设计给出了实用的建议。High-power fiber lasers have seen astonishingly rapid progress over the last decade.All-fiber laser systems are preferred for simplicity,compactness,robustness and reliability.Characterized by intrinsically low transmission loss,fused components are referred to the optimum choices.Losses can lead to catastrophic component failure due to localized heating at high power levels.The most meaningful benchmark,when considering the power handling of the component,is the capability of the component to handle optical power loss,rather than transmitted power.Design criterions of low transmission loss are described both in single-mode components and multi-mode components.Some advices about package design are proposed.

关 键 词：光纤光学 光纤激光 高功率光纤耦合器 热效应 传输损耗 热阻 

分 类 号：TN253[电子电信—物理电子学]