A FBG sensing system based on a ring laser structure for high frequency detection

Author

Lin, Yung-Li ; Liang, Tsair-Chun ; Huang, Chiung-Hsuan ; Shih, Ming Chang

Author_Institution

Grad. Inst. of Electro-Opt. Eng., First Univ. of Sci. & Technol., Kaohsiung, Taiwan

fYear

2012

fDate

2-6 July 2012

Firstpage

182

Lastpage

183

Abstract

We demonstrated a fiber sensing system by using a fiber ring 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, a test feature for mechanical vibration has been designed to 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; environmental monitoring (geophysics); fibre optic sensors; frequency measurement; frequency-domain analysis; laser cavity resonators; ring lasers; sensor fusion; strain measurement; time-domain analysis; vibrations; FBG sensing system; environmental sensing; fiber ring resonator cavity; frequency domain; high frequency detection; identical fibers Bragg gratings; long distance environmental monitoring; mechanical vibration; multisensors monitoring; ring laser structure; strain variation measurements; switching control; time domain; Fiber gratings; Optical fiber sensors; Optical ring resonators; Strain;

fLanguage

English

Publisher

ieee

Conference_Titel

Opto-Electronics and Communications Conference (OECC), 2012 17th

Conference_Location

Busan

ISSN

2166-8884

Print_ISBN

978-1-4673-0976-9

Electronic_ISBN

2166-8884

Type

conf

DOI

10.1109/OECC.2012.6276431

Filename

6276431