High-sensitivity, evanescent field refractometric sensor based on a tapered, multimode fiber interference

被引：258

作者：

Wang, Pengfei ^{[1
,2
]}

Brambilla, Gilberto ^{[1
]}

Ding, Ming ^{[1
]}

Semenova, Yuliya ^{[2
]}

Wu, Qiang ^{[2
]}

Farrell, Gerald ^{[2
]}

机构：

[1] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England

[2] Dublin Inst Technol, Sch Elect & Commun Engn, Photon Res Ctr, Dublin 8, Ireland

来源：

OPTICS LETTERS | 2011年 / 36卷 / 12期

基金：

爱尔兰科学基金会;

关键词：

SINGLE-MODE FIBER;

D O I：

10.1364/OL.36.002233

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose and experimentally demonstrate an enhanced evanescent field fiber refractometer based on a tapered multimode fiber sandwiched between two single-mode fibers. Experiments show that this fiber sensor offers ultra-high sensitivity [better than 1900 nm/RIU at a refractive index (RI) of 1.44] for RI measurements within the range of 1.33-1.44, in agreement with the theoretical predictions. This is the highest value reported to date (to our knowledge) in the literature. (C) 2011 Optical Society of America

引用

页码：2233 / 2235

页数：3

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