Highly Sensitive Refractive Index Sensor Based on a Cladding-Etched Thin-Core Fiber Sandwiched between Two Single-Mode Fibers

被引：15
|
作者：
Xu Ben [1 ]
Li Yi [1 ]
Dong Xin-Yong [1 ]
Jin Shang-Zhong [1 ]
Zhang Zai-Xuan [1 ]
机构：
[1] China Jiliang Univ, Coll Opt & Elect Technol, Hangzhou 310018, Zhejiang, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2012年 / 29卷 / 09期
基金：
中国国家自然科学基金;
关键词：
OPTICAL-FIBER; INTERFEROMETER; MICROFIBER; GRATINGS; TAPERS;
D O I：
10.1088/0256-307X/29/9/094203
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A refractive index (RI) sensor based on a cladding-etched thin-core single-mode fiber (TCSMF) sandwiched between two single-mode fibers is demonstrated. The experimental results show that the sensitivity, within the RI range of 1.333-1.340, is enhanced at least 6 times by etching. It increases with the surrounding RI and reaches 857.5 nm/RIU at RI of 1.3684, and it can be expected to be higher with the decrease of the cladding diameter of the TCSMF.
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页数：3
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