光纤功率合束器是实现高功率光纤激光的核心元器件, 可将多个中等功率的光纤激光器进行功率合成, 以获得更高功率的光纤激光输出, 解决单根光纤激光器功率进一步提升所遇到的瓶颈问题。文中综述了光纤激光功率合束器的基本结构和国内外研究现状, 阐述了光纤功率合束器的工艺制作流程以及工艺难点, 针对现存问题及今后的研究方向提出了建议。

All-fiber signal combiner is one of the key components to break through the power scaling limitation of a single fiber laser by combing several high power fibers into a single fiber to realize the higher output power. The basic structures and the research progress of the all-fiber combiner at home and abroad were sumarized. The technical program and features were discussed in detail, existing problem and future research direction were put forward.