分光比可调的V形槽光纤耦合器  

TUNABLE FIBER COUPLING SPLITTER USING AN EMBEDDED V-GROOVE

作　　者：余有龙[1] 董孝义[1] 杨秀峰[1] 李红 王江[1] 金发宏[1] 盛秋琴[1] 

机构地区：[1]南开大学现代光学研究所,天津300071

出　　处：《光子学报》1997年第10期919-923,共5页Acta Photonica Sinica

基　　金：国家自然科学基金;国家教委光学信息技术科学开放研究实验室资助

摘　　要：本文提出并分析了V形槽光纤耦合器进行光束耦合的可能，认为纤芯和包层的折射率一定时对应确定的a值，此时通过槽面折射法可以达到理想的分光比可调的耦合分束目的，并给出该类器件分光比的表达式．采用槽面内反射方法只能进行耦合而不能分束．The possibilities of coupling and splitting using an embedded V-groove are presented and analyzed in this paper. While the incident beam is refracted on the surface of the groove, keeping the angle a at a special value which is determined by the refractive indexes of core and cladding,efficient coupling and tunable splitting ratio can be achieved. The expression of the splitting ratio of this device is shown. The beam can be coupled into one side of the core of the fiber,but it can't be splitted into the other side through inner reflecting on the surface of the groove.

关 键 词：V形槽 分束器 耦合器件 光纤耦合器 分光比 

分 类 号：TN253[电子电信—物理电子学]