锥形光纤与楔形光纤的耦合  

Coupling Between a Tapered Fibre and a Wedge-Shaped Fibre

作　　者：杨修文[1] 

机构地区：[1]郧阳师范高等专科学校物理系,湖北丹江口442700

出　　处：《微纳电子技术》2010年第10期638-642,共5页Micronanoelectronic Technology

基　　金：国家自然科学基金资助项目(69877014);湖北省教学研究资助项目(2003298)

摘　　要：用实验方法测量了楔形光纤与锥形光纤的耦合效率,作出耦合效率随楔形光纤的半楔角及锥形光纤半圆锥角的变化曲线。从实验结果可以看出,楔形与锥形光纤的耦合效率随半楔角增加而增大。当半楔角由15.0°增大到30.3°,半楔角由44.9°增大到55.2°时,耦合效率曲线呈较快的上升趋势;当半楔角由30.3°增大到44.9°时,耦合效率曲线上升趋势变缓。当锥形光纤半圆锥角增加时,耦合效率也随着增大;并且随着楔形与锥形光纤的间距的减小而增大,在间距由0.10mm减小到0.03mm时,耦合效率曲线呈较快的上升趋势;在间距由0.03mm减小到0.01mm时,耦合效率曲线呈下降趋势。The coupling efficiency of the preparation between a tapered fibre and a wedge-shaped fibre was measured.The curves of the coupling efficiency varying with the wedge-shaped fibre half-wedge angle and tapered fibre half-cone angle were given.The experiment results show that the coupling efficiency between a tapered fibre and a wedge-shaped fibre increases with the increase of the half-wedge angle.The curve of the coupling efficiency shows a rapidly rising trend by varying the half-wedge angle from 15.0°to 30.3°and from 44.9°to 55.2°,but the coupling efficiency varies slowly with the half-wedge angle from 30.3°to 44.9°.The coupling efficiency also increases with the increase of the tapered fibre half-cone angle,and increases with the decrease of the distance between the wedge-shaped and tapered fibre.The curve of the coupling efficiency shows a rapidly rising trend by varying the wedge angle from 0.10 mm to 0.03 mm and a dropping trend by reducing the distance from 0.03 mm to 0.01 mm.

关 键 词：锥形光纤 楔形光纤 探针 耦合效率 半锥角 半楔角 

分 类 号：TN253[电子电信—物理电子学]