REFRACTIVE INDEX SENSOR BASED ON MACH-ZEHNDER INTERFEROMETER FORMED BY TWO CASCADED SINGLE MODE FIBER CORNERS

被引：13
|
作者：
Shi, Qingguo [1 ,2 ,3 ]
Chen, Daru [1 ,2 ,3 ]
Jiang, Xiaogang [1 ,2 ,3 ]
Peng, Baojin [1 ,2 ,3 ]
Lei, Xueqin [1 ,2 ,3 ]
机构：
[1] Zhejiang Normal Univ, Inst Informat Opt, Jinhua 321004, Peoples R China
[2] Zhejiang Normal Univ, Joint Res Lab Opt, Jinhua 321004, Peoples R China
[3] Zhejiang Univ, Jinhua 321004, Peoples R China
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2014年 / 56卷 / 11期
基金：
国家高技术研究发展计划(863计划);
关键词：
fiber sensor; Mach-Zehnder interferometer; fiber corners; refractive index sensing;
D O I：
10.1002/mop.28656
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We reported a novel fiber sensor based on two cascaded single mode fiber corners, which has a high sensitivity for refractive index (RI) sensing and a low temperature crosstalk. RI sensing was experimentally demonstrated with an average sensitivity of 235 nm/RI unit in a RI range from 1.333 to 1.418, which is relatively high among the previously reported similar fiber sensors (e.g., it is about 10 times higher than that of the normal two or three-cascaded-taper based Mach-Zehnder interferometer). The proposed RI sensor was fabricated by fiber fusion splicer, where the fiber corner was fabricated by splicing the two overlapping single mode fibers, which ensures that the proposed RI sensor is compact and strong. (C) 2014 Wiley Periodicals, Inc.
引用
收藏
页码：2642 / 2645
页数：5
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