Fiber sensing system with double Bragg grating Febry-Perot resonator

Author

Sheih, Wen Hsuan ; Ting, Wen Kui ; Hou, Chien Cheng ; Lin, Hsuan Yang ; Shih, Ming Chang ; Feng, Shih Wei

Author_Institution

Dept. of Electr. Eng., Nat. Univ. of Kaohsiung, Kaohsiung, Taiwan

fYear

2010

fDate

13-18 June 2010

Firstpage

446

Lastpage

447

Abstract

We demonstrated a fiber sensing system by using an erbium doped fiber resonator cavity formed by two identical fibers Bragg gratings (FBG). The variation of the wavelength of the sensing FBG can be transferred and amplified in real time for long distance environmental monitoring. Measurements of a strain variation in time domain and frequency domain are presented. In addition, by applying a switching control to this system, it can be adapted in multi-sensors monitoring for versatile applications for environmental sensing.

Keywords

Bragg gratings; Fabry-Perot resonators; erbium; fibre optic sensors; strain measurement; JkJk:Er; double Bragg grating Fabry-Perot resonator; environmental sensing; fiber resonator cavity; fiber sensing system; frequency domain; multisensors monitoring; strain variation measurement; time domain; Bragg gratings; Control systems; Erbium; Fiber gratings; Frequency domain analysis; Frequency measurement; Monitoring; Strain measurement; Time measurement; Wavelength measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements (CPEM), 2010 Conference on

Conference_Location

Daejeon

Print_ISBN

978-1-4244-6795-2

Type

conf

DOI

10.1109/CPEM.2010.5545143

Filename

5545143