Mid-infrared evanescent wave sensor based on side-polished chalcogenide fiber

A highly sensitive mid-infrared evanescent wave sensor based on side-polished (SPF) chalcogenide fiber (ChG) was proposed in this work. The optimum optical fiber parameters were determined via numerical simulation by detecting the leakage intensity of evanescent waves from the optical fiber of diffe...

Full description

Saved in:
Bibliographic Details
Published in:Ceramics international 2023-01, Vol.49 (1), p.1291-1297
Main Authors: Yang, Yitao, Ge, Kaixin, Tao, Pan, Dai, Shixun, Wang, Xunsi, Zhang, Wei, Xu, Tiefeng, Wang, Yin, Lin, Ting-Jung, Zhang, Peiqing
Format: Article
Language:English
Subjects:
Chalcogenide glass fiber
Fiber sensor
Graphene oxide
Side-polished structure
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A highly sensitive mid-infrared evanescent wave sensor based on side-polished (SPF) chalcogenide fiber (ChG) was proposed in this work. The optimum optical fiber parameters were determined via numerical simulation by detecting the leakage intensity of evanescent waves from the optical fiber of different polish depths. The SPF remarkably enhanced the evanescent wave sensing while maintaining fiber loss and strength. Graphene oxide (GO) was coated on the fiber to enhance the sensitivity of SPF sensor for butane (C4H10). GO has a great specific surface area and abundant oxygen-containing functional groups, which enlarges the contact area of GO with gas molecules and enables to adsorb gas. Results show that the GO-SPF sensor can be three and five times more sensitive than the original fiber optic sensor and SPF sensor for butane gas detection, and has a fast response time and good repeatability.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2022.09.108