摘要
全光纤化掺铥光纤激光器作为光学参量振荡器的泵浦源,可以实现3～5μm激光输出,在激光雷达和光电对抗领域有着极为重要的应用前景.本文运用全国产化的泵浦光耦合器和双包层掺铥光纤实现了全光纤化掺铥光纤激光器.该光纤激光器采用自制的光纤布喇格光栅作为反射腔镜,增益光纤采用水冷的方式.光纤布喇格光栅通过45fs、800nm的飞秒脉冲光和相位掩模板直接在双包层掺铥光纤上刻蚀得到,泵浦光通过泵浦光耦合器的一端耦合进入增益光纤,产生的激光由泵浦光耦合器的另一端输出.输出激光的最高功率达到22.2W,激光波长为1.96μm,斜率效率约为37%,激光线宽为72.4pm.
All-fiber Tm3+-doped fiber laser can be used as the pumping for(Optical Parametric Oscillator,OPO),realizing 3~5 μm laser output.All-fiber Tm3+-doped fiber laser was demonstrated more excellent application prospects in lidar and electro-optical countermeasure.An all-fiber cladding-pumped Tm3+-doped fiber laser using pump combiner and double-cladding fiber is reported.The pump combiner and double-cladding fiber are home-made.Home-made fiber bragg grating(FBG) is used as reflection cavity.The double-cladding fiber is cooling by water.The fiber Bragg grating is directly written in the Tm3+-doped fiber through 45 fs,800 nm femtosecond and a phase mask.The combiner is used to launch the pump light into the Tm-doped inner-cladding fiber.The wavelength of the laser is about 1.96 μm with a slope efficiency of 37% in respect to the launched pump power,the linewidth is narrow only about 72.4 pm.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2010年第S1期80-82,共3页
Acta Photonica Sinica
基金
The Development Program for Outstanding Young Teachers in Harbin Institute of Technology(No.2008.005)
