Title :
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
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;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2010 Conference on
Conference_Location :
Daejeon
Print_ISBN :
978-1-4244-6795-2
DOI :
10.1109/CPEM.2010.5545143
