Miniature optical fiber refractometer using cladded multimode tapered fiber tips

被引：24

作者：

Monzón-Hernández, D ^{[1
]}

Villatoro, J ^{[1
]}

Luna-Moreno, D ^{[1
]}

机构：

[1] Ctr Invest Opt AC, Leon 37150, GTO, Mexico

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2005年 / 110卷 / 01期

关键词：

refractive index sensing; optical fiber sensors; evanescent field sensors;

D O I：

10.1016/j.snb.2005.01.011

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Cladded multimode tapered fiber tips with mirrored end are proposed as refractometers. The working mechanism of such devices is based on radiation of the modes guided by the cladding, which is induced by the refractive index of the sample medium. Using conventional graded-index multimode fiber, a low-power 850 nm LED, and a simple detection scheme some inexpensive, robust, and versatile refractometers are demonstrated. The length of the tips is typically 2 mm, while their diameter is less than 80 mu m. The refractometers can cover a refractive index range between 1.36 and 1.46 with resolution up to 3 x 10(-5). (C) 2005 Elsevier B.V. All rights reserved.

引用

页码：36 / 40

页数：5

共 27 条

[1] NEW IN-LINE OPTICAL-FIBER SENSOR-BASED ON SURFACE-PLASMON EXCITATION [J].