A Hollow-Core Photonic Crystal Fiber Cavity Based Multiplexed Fabry–PÉrot Interferometric Strain Sensor System

Author

Shi, Qing ; Wang, Zhi ; Jin, Long ; Li, Yuan ; Zhang, Hao ; Lu, Fuyun ; Kai, Guiyun ; Dong, Xiaoyi

Author_Institution

Inst. of Phys., Nankai Univ., Tianjin

Volume

20

Issue

15

fYear

2008

Firstpage

1329

Lastpage

1331

Abstract

A hollow-core photonic crystal fiber Fabry-Perot interferometric (HC-PCF-FPI) strain sensing system is proposed and demonstrated. The sensing system has an excellent multiplexing capability owing to the wide free-spectral range of the HC-PCF-FPI structure. Moreover, with a simple fast Fourier transform demodulation method, the proposed strain sensing system could be potentially applied in structural health monitoring.

Keywords

Fabry-Perot interferometers; condition monitoring; demodulation; fast Fourier transforms; fibre optic sensors; photonic crystals; strain sensors; Fabry-Perot interferometry; fast Fourier transform demodulation method; hollow-core photonic crystal fiber cavity; multiplexing technology; optical fiber sensors; strain sensing system; structural health monitoring; Capacitive sensors; Demodulation; Optical coupling; Optical fiber sensors; Optical interferometry; Optical sensors; Optical signal processing; Photonic crystal fibers; Probes; Sensor systems; Fabry–PÉrot interferometric (FPI); hollow-core photonic crystal fiber (HC-PCF); multiplexing technology; strain sensing system;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2008.926948

Filename

4563487