CAJ | 학술논문

基于稳态热传导方程,对高功率双包层光纤激光器的热效应进行了研究,分析了光纤尺寸、冷却条件、泵浦功率等因素对光纤温度场的影响.对给定参数的光纤,给出了理论功率极限.指出对于目前常用双包层光纤激光器,最大输出功率主要受各外包层材料的熔点和非线性效应限制,从而可以确定功率限制的瓶颈所在,提出有效的改进方案,如减弱或消除线性效应、提高外包层的耐热能及改进制冷方案.
기우은태열전도방정,대고공솔쌍포층광섬격광기적열효응진행료연구,분석료광섬척촌、냉각조건、빙포공솔등인소대광섬온도장적영향.대급정삼수적광섬,급출료이론공솔겁한.지출대우목전상용쌍포층광섬격광기,최대수출공솔주요수각외포층재료적용점화비선성효응한제,종이가이학정공솔한제적병경소재,제출유효적개진방안,여감약혹소제선성효응、제고외포층적내열능급개진제랭방안.
According to the steady-state heat conduction equation,the temperature distribution in the high power double-clad fiber laser(DCFL) has been analyzed.The influence of fiber size,cooling-boundary condition and pump power on temperature distribution are discussed based on the analytic solution.The theoretical maximum output power with given parameters is obtained.The maximum power of a commonly used DCFL is limited by the melting point of the material and the non-linear effect.The bottlenecks can be easily determined so as to come up with effective improved shemes,such as weakening or eliminating the linear effect,raising the heat-resistant of outer-clad and improving the cooling method.