Enhanced responsivity with skew ray excitation of reflection- and transmission-type refractometric sensors

被引：9

作者：

Chen, George Y. ^{[1
]}

Codemard, Christophe A. ^{[2
]}

Lewis, Richard J. ^{[3
]}

Jankowski, Lukasz ^{[4
]}

Chan, Jaclyn S. ^{[1
]}

Gorman, Philip M. ^{[2
]}

Zervas, Michalis N. ^{[1
,2
]}

机构：

[1] Univ Southampton, Optoelect Res Ctr, Southampton SO9 5NH, Hants, England

[2] SPI Lasers, Adv Laser Lab, Southampton, Hants, England

[3] Cardiff Univ, Cardiff Sch Biosci, Cardiff CF10 3AX, S Glam, Wales

[4] Polish Acad Sci, Inst Fundamental Technol Res, Warsaw, Poland

来源：

OPTICS LETTERS | 2014年 / 39卷 / 13期

关键词：

PHOTONIC-CRYSTAL FIBER; REFRACTIVE-INDEX SENSOR; OPTICAL FIBERS; MICROFIBER; INTERFEROMETER;

D O I：

10.1364/OL.39.003822

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The responsivity of optical fibers to refractive index can be enhanced using high-order skew rays compared with using meridional rays. Skew rays can have a much higher number of reflections with increased interaction length along the core-cladding interface, which gives rise to stronger interactions with the external medium. Reflection/transmission-type refractometric sensors based on twin-coupled-core and multimode fibers showed one/two orders of magnitude increase in responsivity with skew ray excitation. The responsivity and sensitivity for the two types are similar to 2000%/RIU, similar to 1400%/RIU, and 4.9 x 10(-5) RIU, 7.0 x 10(-5) RIU, respectively. (C) 2014 Optical Society of America

引用

页码：3822 / 3825

页数：4

共 43 条

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