铲形光纤与半导体激光器耦合特性的研究  

Study on coupling characteristics of spade fiber and laser diode

作　　者：赵曾伟[1] 宋海飞[1] 邢彩虹[1] 张新英[1] 毛海涛[1] 王庆国[1] 

机构地区：[1]河南大学物理与电子学院,开封475004

出　　处：《激光技术》2010年第3期385-388,共4页Laser Technology

摘　　要：为了提高半导体激光器与光纤的耦合效率和失配容忍度,提出了利用带铲形微透镜的多模光纤与大功率半导体激光器进行耦合的新技术。采用模场匹配的方法,推导出耦合效率关系。在理论上讨论了耦合时在轴向、倾角的失配容忍度,并在实验中得到了高达78.5%的耦合效率。这一结果对提高铲形光纤的实用性是有帮助的。A novel technique that a high power laser diode is directly coupled to a spade micro-lens multimode fiber was presented to improve the fiber coupling efficiency and alignment tolerance. With the field matching technology, the relationship of coupling efficiency was deduced. The alignment tolerances for axis and obliquity were also discussed. The coupling efficiency reached up to 78. 5% in experiments. It is helpful to improve the practicality of spade fiber coupling systems.

关 键 词：光纤光学 耦合特性 铲形光纤 激光二极管 

分 类 号：TN248.4[电子电信—物理电子学] TN253