【摘要】 阐述了大模面积有源光纤的基本原理,介绍了有源光纤的制备过程。针对目前国内大模场有源光纤制备技术中存在的问题,从传统结构大模面积光纤的制备工艺入手,对有源光纤预制棒制备工艺进行了理论分析和实验优化,通过采用多次沉积等新技术,解决了有源区面积难以增大等问题。最终制备出纤芯直径95μm的传统结构的超大模场有源光纤,并实现了激光输出。更多还原

【Abstract】 The fundamental principle of large mode area(LMA) fiber was discussed and the fabrication process of active optical fiber was introcuded.For solving the problems existed in domestic LMA fiber preparing technology,theoretical analysis and experimental optimization on active optical fiber preparation process were carried out,and a multi-deposition new technology was also used to increase the doped area.Finnally,the LMA fiber with 95 μm core diamter has been prepared successfully and realized the laser output.更多还原