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高功率双包层光纤激光器热效应及功率极限
引用本文:薛冬,周军,楼祺洪,帅敏东.高功率双包层光纤激光器热效应及功率极限[J].强激光与粒子束,2009,21(7).
作者姓名:薛冬  周军  楼祺洪  帅敏东
作者单位:Xue Dong1, Zhou Jun2, Lou Qihong2, Shuai Mindong1
基金项目:国家高技术研究发展计划(863计划) 
摘    要: 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。

关 键 词:双包层光纤激光器  温度场  热效应  功率极限
收稿时间:1900-01-01;

Thermal effect and power limit in high power double-clad fiber laser
Xue Dong,Zhou Jun,Lou Qihong,Shuai Mindong.Thermal effect and power limit in high power double-clad fiber laser[J].High Power Laser and Particle Beams,2009,21(7).
Authors:Xue Dong  Zhou Jun  Lou Qihong  Shuai Mindong
Institution:1. Physics and Electronic Engineering Department, Zaozhuang University, Zaozhuang 277100, China; 2. Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, P. O. Box 800-211, Shanghai 201800, China
Abstract: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.
Keywords:double-clad fiber laser  temperature field  thermal effect  power limit
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