Fiber Microsphere Coupled in a Taper for a Large Curvature Range

被引：1
作者：
Robalinho, Paulo [1 ,2 ]
Frazao, Orlando [1 ,2 ]
机构：
[1] Fac Univ Porto, INESC TEC, Rua Campo Alegre 687, P-4169007 Porto, Portugal
[2] Fac Univ Porto, Dept Phys & Astron, Rua Campo Alegre 687, P-4169007 Porto, Portugal
来源：
FIBERS | 2019年 / 7卷 / 10期
关键词：
optic; physic; sensor; microsphere; taper; fiber; signal processing; curvature; optical fiber sensor; optical microstructures;
D O I：
10.3390/fib7100087
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This work consists of using an optical fiber microsphere as a sensor for a wide range of curvature radii. The microsphere was manufactured in a standard fiber with an electric arc. In order to maximize system efficiency, the microsphere was spliced in the center of a taper. This work revealed that the variations of the wavelength where the maxima and minima of the spectrum are located varies linearly with the curvature of the system with a maximum sensitive of 580 +/- 20 (pm km). This is because the direction of the input beam in the microsphere depends on the system curvature, giving rise to interferometric variations within the microsphere.
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收藏
页数：7
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