Microstructure fibres for optical sensing in gases and liquids

被引:248
作者
Fini, JM [1 ]
机构
[1] OFS Labs, Murray Hill, NJ 07302 USA
关键词
fibre sensors; microstructure fibres; speciality fibres; optical sensing;
D O I
10.1088/0957-0233/15/6/011
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A novel water-core microstructure fibre design allows nearly ideal guidance for aqueous sensing applications. The total internal reflection by a microstructured silica-air cladding provides robust confinement of light in a fluid-filled core, if the average cladding index is sufficiently below the index of water. Numerical results show dramatically improved loss and overlap of light with the sample, compared to evanescent-field fibres, indicating a direct improvement of sensor performance. A strategy for the improvement of evanescent-wave gas sensors is also discussed.
引用
收藏
页码:1120 / 1128
页数:9
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