CAJ | 학술논문

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3～5 μm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45 fs、800 nm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1.96 μm,斜率效率约为37％,激光线宽为72.4 pm.
전광섬화참주광섬격광기작위광학삼량진탕기적빙포원,가이실현3～5 μm격광수출,재격광뢰체화광전대항영역유착겁위중요적응용전경.본문운용전국산화적빙포광우합기화쌍포층참주광섬실현료전광섬화참주광섬격광기.해광섬격광기채용자제적광섬포나격광책작위반사강경,증익광섬채용수랭적방식.광섬포나격광책통과45 fs、800 nm적비초맥충광화상위엄모판직접재쌍포층참주광섬상각식득도,빙포광통과빙포광우합기적일단우합진입증익광섬,산생적격광유빙포광우합기적령일단수출.수출격광적최고공솔체도22.2W,격광파장위1.96 μm,사솔효솔약위37％,격광선관위72.4 pm.
All-fiber Tm3+-doped fiber laser can be used as the pumping for (Optical Parametric Oscillator,OPO),realizing 3 ～ 5 μtm 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.