掺镱双包层光纤激光器多波长输出性能分析  

Performance analysis of multiwavelength Yb-doped double-clad fiber lasers

作　　者：汪帆[1] 潘炜[1] 罗斌[1] 熊悦[1] 许江衡[1] 

机构地区：[1]西南交通大学计算机与通信工程学院,成都610031

出　　处：《激光技术》2005年第5期497-500,共4页Laser Technology

基　　金：国家自然科学基金资助项目(10174057)

摘　　要：从理论上分析了由F-P滤波器实现的多波长双包层光纤激光器(DCFL)的边界条件和输出功率,在考虑了F-P滤波器中双色镜反射率的波长依赖关系的前提下,对影响多波长输出功率和消光比的参数如双色镜和光纤出光端面的反射率、抽运功率等进行了研究。结果表明,光纤出光端面的反射率存在一个最佳值,再配合适当的双色镜反射率,能使多波长输出的功率和消光比达到很好的均衡。适当增大抽运功率也能优化多波长输出功率和消光比。通过控制F-P滤波器的腔长,能够调节多波长输出的数目。The performance of multiwavelength Yb-doped double-clad fiber lasers （DCFL） is analyzed based on a FabryPerot （F-P） flter, and the wavelength dependence of reflectivity of dichroic mirror in the filter has been taken into account. It is found that the reflectivity of DCF facets and dirchroic mirror can obviously influence the performance, and there is an optimal value of the reflectivity of DCF facets. Using this optimal value,satisfying output power and extinction-ratio can be achieved. And high pump power will improve the output power and extinction-ratio. By controlling the length of F-P filter, the multiwavelength number can be adjusted.

关 键 词：双包层光纤激光器 多波长 F-P滤波器 Yb^3+掺杂 

分 类 号：TN248.1[电子电信—物理电子学]