A Hollow Core Fiber-Based Intermodal Interferometer for Measurement of Strain and Temperature

Author

Fei Qi ; Limin Hu ; Xinyong Dong ; Yi Xin ; Chun-Liu Zhao ; Shangzhong Jin ; Chan, Julian Chi Chiu

Author_Institution

Inst. of Optoelectron. Technol., China Jiliang Univ., Hangzhou, China

Volume

13

Issue

9

fYear

2013

fDate

Sept. 2013

Firstpage

3468

Lastpage

3471

Abstract

A hollow core fiber-based all-fiber intermodal interferometer is proposed for measurement of strain and temperature. The sensing structure is simply a short segment of hollow core silica fiber being sandwiched between two normal single mode fibers. The fabrication process only involves a conventional fusion splicer and a mechanical fiber cleaver. Experimental results show that sensitivities of 1.21 pm/με and 21.30 pm/°C are achieved for strain and temperature measurements, respectively.

Keywords

fibre optic sensors; light interferometers; optical fibre fabrication; silicon compounds; splicing; strain measurement; strain sensors; temperature measurement; temperature sensors; fusion splicer; hollow core fiber-based all-fibre intermodal interferometer; hollow core silica fiber; mechanical fiber cleaver; normal single mode fibers; sensing structure; strain measurement; temperature measurement; Hollow core fibers; fiber sensors; intermodal interferometers;

fLanguage

English

Journal_Title

Sensors Journal, IEEE

Publisher

ieee

ISSN

1530-437X

Type

jour

DOI

10.1109/JSEN.2013.2263798

Filename

6517492