掺Yb双包层光纤激光器的时域特性和光谱特性研究  

Temporal and Spectral Characteristic of a Yb-doped Double-clad Fiber Laser

作　　者：张书敏[1] 吕福云[1] 谢春霞[1] 王宏杰[1] 

机构地区：[1]南开大学物理科学学院

出　　处：《光子学报》2005年第2期187-190,共4页Acta Photonica Sinica

基　　金：天津市科技攻关项目(No. 03183611);国家自然科学基金重点项目 (No. 60137010 );国家自然科学基金重大项目(No. 90101022);国家自然科学基金 (No. 69977012);河北省教育厅科研计划课题(2001241)

摘　　要：实验观测了掺Yb3+双包层光纤激光器的时域特性和光谱特性 研究了抽运功率、腔损耗对激光器工作特性的影响 研究发现,利用单镜腔结构的光纤激光器,可产生自脉动、受激布里渊散射和受激喇曼散射等非线性效应;而采用双镜腔结构可有效抑制自脉动特性,提高激光器工作的稳定性,并对实验现象进行了定性的分析.The temporal and spectral characteristic of a Yb-doped double-clad fiber laser has been studied. The influences of the pumped power and the cavity losses on the laser are investigated. It is found that the self-pulsing and the nonlinear phenomena such as Brillouin and Raman scatterings can be observed in a one-mirror cavity, and the system is stabilized in a two-mirrors cavity where Brillouin and Raman scatterings are efficiently suppressed. We also give a theoretical explanation about the phenomenon in our experiments.

关 键 词：掺YB双包层光纤激光器 时域特性 光谱特性 抽运功率 腔损耗 

分 类 号：TN248.1[电子电信—物理电子学]