DocumentCode
76579
Title
Fiber Bragg Grating Anemometer With Reduced Pump Power-Dependency
Author
Lok-Hin Cho ; Chao Lu ; Zhang, A. Ping ; Hwa-Yaw Tam
Author_Institution
Dept. of Electron. & Inf. Eng., Hong Kong Polytech. Univ., Hong Kong, China
Volume
25
Issue
24
fYear
2013
fDate
Dec.15, 2013
Firstpage
2450
Lastpage
2453
Abstract
We propose a novel scheme to reduce the sensitivity to pump power variation in optical fiber anemometers that used fiber Bragg grating (FBG) inscribed in light absorption optical fibers. By modulating the output power of the pump laser and by measuring the time constant of the wavelength change of the FBG sensor, we theoretically and experimentally demonstrated that significant reduction of the sensitivity of flow measurement to pump power can be achieved.
Keywords
Bragg gratings; anemometers; fibre optic sensors; flow measurement; optical pumping; fiber Bragg grating anemometer; flow measurement; light absorption optical fibers; pump power dependency; time constant; Fiber gratings; Fluid flow measurement; Laser excitation; Optical fiber sensors; Optical fibers; Temperature sensors; Fluid flow measurement; anemometer; fiber Bragg gratings; optical fiber sensors;
fLanguage
English
Journal_Title
Photonics Technology Letters, IEEE
Publisher
ieee
ISSN
1041-1135
Type
jour
DOI
10.1109/LPT.2013.2288115
Filename
6651749
Link To Document