基于1150 nm光纤激光抽运的中红外掺钬光纤激光器  

Mid-Infrared Ho-Doped Fiber Laser Pumped by 1150 nm Fiber Laser

作　　者：谌鸿伟[1] 沈炎龙[1] 陶蒙蒙[1] 栾昆鹏 黄珂[1] 冯国斌[1] 

机构地区：[1]西北核技术研究所激光与物质相互作用国家重点实验室,陕西西安710024

出　　处：《中国激光》2017年第8期67-71,共5页Chinese Journal of Lasers

基　　金：中国博士后科学基金(2015M582860)

摘　　要：采用1150nm光纤激光振荡器作为抽运源,实现了3μm波段中红外掺钬光纤激光器出光。该激光器采用线性谐振腔结构,其由镀金全反镜与切割角度为0°的光纤端面构成。增益介质为一段长为4.5m的双包层钬镨共掺氟化物光纤,纤芯直径为10μm,纤芯数值孔径为0.2。当1150nm抽运激光器功率为1.43W时,中红外掺钬光纤激光器输出功率为115mW,激光器系统的光-光转换效率为8.0%。在输出最大功率时,输出激光中心波长为2868.4nm,输出光谱的半峰全宽为1.3nm。相关研究成果对研制高功率紧凑型中红外掺钬光纤激光器具有一定的参考价值。A mid-infrared Ho-doped fiber laser localized at 3 /~m band is achieved using the all-fiber 1150 nm fiber laser oscillator as the pump source. The Ho-doped fiber adopts a linear cavity structure which consists of a high- reflectivity golden mirror and a vertical-cutted fiber tip. A 4.5 m Ho ：Pr co-doped dual cladding fiber is used as the gain media. The core diameter is 10 /~m and the numerical aperture of the fiber core is 0.2. When the 1150 nm pump power is 1.43 W, the mid-infrared fiber laser output is 115 roW, The optical-to-optical conversion efficiency of the Ho-doped fiber laser is 8.0%, The central wavelength is 2868.4 nm under the maximum output power and the full width at half maximum is 1.3 nm. The research results can make a contribution to the further development of mid-infrared Ho-doped fiber laser.

关 键 词：激光器 掺钬光纤 中红外波段 氟化物光纤 

分 类 号：TN212[电子电信—物理电子学] TN248.1