论文部分内容阅读
为了改善不同类型光纤熔接时的模场失配,通过调整普通光纤熔接机的熔接参数,对模场直径较小的光纤进行加热扩芯,实现了10/130μm大模场面积双包层光纤和6/125μm单模光纤的低损耗熔接,光纤耦合效率可达到91%,并成功应用于自主研发的小型1064nm光纤激光器中。对利用光纤熔接机加热扩芯制作模场适配器进行了理论分析,并用1064nm光纤激光器测量其实际传输损耗。实验结果表明:采用普通光纤熔接机,适当的调整熔接参数,可以有效地提高大模场面积光纤到单模光纤的耦合效率,为制作模场适配器提供了一种简单实用的方法。
In order to improve the mode field mismatch of different types of optical fiber fusion, by adjusting the welding parameters of ordinary optical fiber fusion splicer, the optical fiber with smaller diameter of mode field is heated and expanded to achieve the 10 / 130μm large mode-area double-clad fiber and Low loss fusion of 6 / 125μm single mode fiber achieves 91% fiber coupling efficiency and is successfully used in small 1064nm fiber lasers independently developed. The use of fiber splicing machine heated core expansion mode field adapter made a theoretical analysis, and use 1064nm fiber laser to measure the actual transmission loss. The experimental results show that the conventional fiber splicing machine can adjust the welding parameters properly, which can effectively improve the coupling efficiency of large-mode-area fiber to single-mode fiber, and provide a simple and practical method for manufacturing mode-field adapters.