中文摘要：

光纤大直径端帽熔接是千瓦级传能光纤封装的关键技术之一。为了实现光纤大直径端帽熔接,从理论上分析了光纤与大直径端帽熔接机理,设计并搭建了基于CO2激光的光纤大直径端帽熔接系统,掌握了光纤大直径端帽熔接方法和工艺,并利用熔接好的大直径端帽的光纤成功传输了千瓦级连续激光。

英文摘要：

Fiber large diameter end-cap splicing is one of the key technologies to increase energy transfer in fiber up to kilowatt.In order to achieve fiber large diameter end-cap splicing,the splicing mechanism of fiber end-cap is analyzed theoretically.A system of fiber end-cap splicing is designed and built based on CO2 laser,and the method and processing of fiber large diameter end-cap splicing are investigated and implemented.The continuous wave laser up to kilowatt is transferred successfully by the fiber that is with spliced large diameter end-cap.