CAJ | 학술논문

高功率半导体激光技术的快速发展使得单元器件性能实现了重大突破，但在光束质量上仍存在较大的缺陷，难以同时得到较高的输出功率和亮度。探索将激光器快慢轴分别准直后直接耦合进入光纤，既可以避免使用到复杂光学系统又可以获得较高的输出功率。实验选取四只工作电流为2A，输出功率分别为1.636W、1.662W、1.659W、1.643W的980nm的单管半导体激光器作为光源，通过空间合束技术耦合进芯径200μm、数值孔径0.22的光纤中，输出功率3.41W，光纤耦合效率为51.7%。
고공솔반도체격광기술적쾌속발전사득단원기건성능실현료중대돌파，단재광속질량상잉존재교대적결함，난이동시득도교고적수출공솔화량도。탐색장격광기쾌만축분별준직후직접우합진입광섬，기가이피면사용도복잡광학계통우가이획득교고적수출공솔。실험선취사지공작전류위2A，수출공솔분별위1.636W、1.662W、1.659W、1.643W적980nm적단관반도체격광기작위광원，통과공간합속기술우합진심경200μm、수치공경0.22적광섬중，수출공솔3.41W，광섬우합효솔위51.7%。
The rapid development of high power semiconductor laser technology has achieved a major breakthrough in performance unit device. But the shortcomings of the beam quality lead to be difficulty to obtain high output power. The fast and slow axes of collimating lasers are directly coupled into the fiber. It can not only avoid the use of com-plex optical systems but also obtain higher output power. Four laser diodes beam at 980nm, were coupled into a core diameter of 200μm, numerical aperture (NA) 0.22 fiber via spatial combination. The fiber coupling output power is 3.41W at current 2A,and the system efficiency is 51.7%.