DocumentCode
3332165
Title
FBG demodulation method based on DFB laser
Author
Jie Liu ; Hong Zhao ; Peng Wang ; Liang Jiang ; Chao Huang
Author_Institution
Coll. of Electr. & Electron. Eng., Harbin Univ. of Sci. & Technol., Harbin, China
Volume
2
fYear
2011
fDate
22-24 Aug. 2011
Firstpage
1207
Lastpage
1210
Abstract
A demodulation system for fiber Bragg grating (FBG) is designed based on distributed feedback (DFB) laser. By use of adjusting the internal temperature, wavelength tunable lasers is achieved, and utilizing the laser to realize the demodulation of FBG sensing signal. The system uses all-fiber structure, with fast response and high precision demodulation. experimental results show that the method is accurate and stable to realize the demodulation of FBG sensing signal, the system minimum resolution can achieve 1pm, the dynamic range was up to 3nm.
Keywords
Bragg gratings; demodulation; distributed feedback lasers; fibre optic sensors; laser tuning; FBG demodulation; distributed feedback laser; dynamic range; dynamic strain; fiber Bragg grating; high precision demodulation; wavelength tunable lasers; Demodulation; Fiber gratings; Fiber lasers; Temperature control; Voltage control; DFB laser; Dynamic strain; demodulation; fiber Bragg grating; sensitivity;
fLanguage
English
Publisher
ieee
Conference_Titel
Strategic Technology (IFOST), 2011 6th International Forum on
Conference_Location
Harbin, Heilongjiang
Print_ISBN
978-1-4577-0398-0
Type
conf
DOI
10.1109/IFOST.2011.6021237
Filename
6021237
Link To Document