Lateral Stress Detection Using a Tapered Fiber Mach–Zehnder Interferometer

Author

Lu, Ping ; Lin, Ganbin ; Wang, Xiaozhen ; Chen, Liang ; Bao, Xiaoyi

Author_Institution

Dept. of Phys., Univ. of Ottawa, Ottawa, ON, Canada

Volume

24

Issue

22

fYear

2012

Firstpage

2038

Lastpage

2041

Abstract

In this letter, a novel approach to measure local lateral stress using a tapered fiber Mach-Zehnder interferometer (TFMZI) is proposed and demonstrated. The transmission spectra of the TFMZI are measured under different transverse pressures and loading positions. The responses of the TFMZI are analyzed in a spatial frequency domain by fast Fourier transform of the corresponding transmission spectra. The proposed approach allows an effective detection of lateral stress-induced fiber deformation at different positions along a TFMZI.

Keywords

Fourier transform optics; Mach-Zehnder interferometers; deformation; fast Fourier transforms; fibre optic sensors; infrared spectra; optical fibre testing; stress measurement; TFMZI; fast Fourier transform; lateral stress detection; lateral stress-induced fiber deformation; loading positions; local lateral stress; spatial frequency domain; tapered fiber Mach-Zehnder interferometer; transmission spectra; transverse pressure; Interference; Loading; Optical fiber LAN; Optical fiber amplifiers; Optical fiber sensors; Stress; Fast Fourier transform; Mach–Zehnder interferometers; fiber tapers; fiber-optic sensor;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2012.2218799

Filename

6302177