Sensing performance comparison for two kinds of reflected fiber ethanol probes with flatted end and microfiber taper

被引：0

作者：

Dang, Hongtao ^{[1
,2
]}

Yu, Zhiwei ^{[1
,2
]}

Yang, Jianye ^{[1
,2
]}

Li, Jin ^{[1
,2
,3
]}

机构：

[1] Xijing Univ, Shaanxi Engn Res Ctr Controllable Neutron Source, Sch Elect Informat, Xian 710123, Peoples R China

[2] Xijing Univ, Shaanxi Int Joint Res Ctr Appl Technol Controllabl, Sch Elect Informat, Xian 710123, Peoples R China

[3] Northeastern Univ, Coll Informat Sci & Engn, Shenyang 110819, Peoples R China

来源：

OPTICAL FIBER TECHNOLOGY | 2023年 / 77卷

关键词：

Optical fiber sensor; Ethanol detection; Microfiber taper; Integrated optics;

D O I：

10.1016/j.yofte.2023.103281

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：

Reflected fiber probes can efficiently detect different environmental parameters in the narrow space. In this paper, the coreless fiber and the microfiber taper cascade-spliced structures were coated with the sensitive materials. Their refractive index sensing performance was studied and compared. The microfiber taper shows a sensitivity of -36.581 dBm/RIU, which is significantly higher than that of the coreless fiber structure with the same length (-9.482 dBm/RIU). The reflected microfiber taper ethanol gas sensor was made by surface-modified with the mixtures containing zinc oxide nanosheets and UV glue with low refractive index. In experiment, as the ethanol concentration increased, the intensity of the reflection spectrum increased, resulting in the sensitivity of 7.18 x 10-4 dBm/ppm. This miniature fiber structure can be integrated into the conventional optical fiber system to develop the miniature detectors with high performance.

引用

页数：5