内腔级联拉曼光纤激光器输出特性的实验研究  

Output Characteristics of a Cascaded Raman Fiber Laser

作　　者：苏红新[1] 吕可诚[1] 闫培光[1] 李乙钢[1] 吕福云[1] 董孝义[1] 

机构地区：[1]南开大学物理学院光电信息科学系,天津300071

出　　处：《光学学报》2003年第1期53-56,共4页Acta Optica Sinica

基　　金：国家自然科学基金重点项目 (6 10 370 10 )资助课题

摘　　要：采用标准单模石英光纤作为拉曼增益介质 ,光纤布拉格光栅作为谐振腔镜 ,研制了一台内腔级联拉曼光纤激光器。利用掺Yb双包层光纤激光器作为抽运源 ,实现了二级拉曼转换 ,在波长 1176 .8nm获得了 30 9mW的最大输出功率 ,斜率效率接近 5 1.5 %。在小抽运功率下 ,发现拉曼光纤激光器的输出中存在重复周期约为 2 .9μs的脉冲序列 ;当抽运功率大于某一值时 ,上述脉冲消失 ,获得了十分稳定的连续输出。A cascaded Raman fiber laser (RFL) based on standard mono-mode silica fiber and fiber Bragg gratings is fabricated. Pumped by a Yb-doped double clad fiber laser, output power of the second Stokes wave around 1176 nm is obtained. The maximal total output power of the RFL is up to 309 mW, and the slope efficiency of the 1176.8 nm output is about 51.5%. Pulses with a repetition rate of 2.9 μs are observed in the laser output when the pump power is near to the threshold. However, when the pump power reaches to a value high enough, stable continue-wave output power is achieved.

关 键 词：内腔级联拉曼光纤激光器 输出特性 实验研究 受激拉曼散射 光纤激光器 输出功率 

分 类 号：TN248[电子电信—物理电子学] TN253