摘要
分析了双包层光纤激光器(DCFL)耦合方程的解析解,并对信号光散射损耗、后腔镜泵浦反射率等影响掺镱DCFL斜线效率的典型参数进行了理论研究。结果表明,斜线效率并不是随着后腔镜泵浦反射率的升高而单调增大,因为泵浦反射率的升高会影响光纤的最佳长度,从而降低斜线效率。所以在优化斜线效率时应该考虑到泵浦反射率和光纤最佳长度之间的匹配。同时,提高纤芯掺杂浓度、减小信号光散射损耗也能增大斜线效率。
An analytic solution of Yb-doped double-clad fiber lasers (DCFL) is presented, and some typical parameters which may influence the slope efficiency of DCFL are discussed based on this analytic solution, such as the reflection of pump power and the signal's scatter loss. It is found that the slope efficiency doesn't always increase with the augment of the reflection of pump power. The change of the reflection will affect the optimal length of the fiber. So it is important to balance between the reflection of pump power and the signal loss. Higher concentration of Yb and lower signal loss will also obviously improve the slope efficiency.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2004年第12期1509-1512,共4页
High Power Laser and Particle Beams
基金
国家自然科学基金资助课题(10174057)
宽带光纤传输与通信系统技术国家重点实验室开放课题(02KF)
关键词
双包层光纤激光器
镱掺杂
斜线效率
泵浦反射
Computer simulation
Energy dissipation
Mathematical models
Numerical methods
Optical fiber coupling
Pumping (laser)
