High refractive index sensing based on single leaky mode attenuation

被引：4
|
作者：
Xue, Lin-Lin [1 ]
Che, Di [1 ]
Yang, Li [1 ]
机构：
[1] Univ Sci & Technol China, Dept Elect Engn & Informat Sci, Hefei 230027, Anhui, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2013年 / 294卷
基金：
中国国家自然科学基金;
关键词：
Optical fiber sensors; Refractive index sensing; Leaky mode; SMS FIBER STRUCTURE; REFRACTOMETER; SENSOR;
D O I：
10.1016/j.optcom.2012.12.082
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose a refractive index (RI) Sensing to measure surrounding RI higher than that of the silica fiber. It is realized by detecting the propagating attenuation of the fundamental leaky mode in a guided-mode-leaky-mode-guided-mode (GLG) fiber structure. By single-wavelength power monitoring with a resolution of 0.01 dB, an average sensitivity of 2.1 x 10(-5) for the RI range from 1.465 to 1.495 is demonstrated by simulations, which is about 3 times higher than that obtained previously by using leaky mode interference in a similar structure. Our experimental results agree well with the theoretical analysis. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：198 / 201
页数：4
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