DocumentCode
3124043
Title
Fast FBG sensor interrogation system using vertical cavity surface emitting laser source
Author
Huang, Y.H. ; Lu, Chao ; Wai, P.K.A. ; Tam, H.Y.
Author_Institution
Dept. Of Electron. & Inf. Eng., Hong Kong Polytech. Univ., Hong Kong, China
fYear
2009
fDate
13-17 July 2009
Firstpage
1
Lastpage
2
Abstract
This paper presents a FBG sensor interrogation system utilizing VCSEL laser as the light source. Using saw tooth signal to drive the VCSEL input current, a continuous spectrum tuning range of 2 nm can be obtained. Relationship between wavelength tuning range and scanning speed of the VCSEL is studied. TDM method is applied to increase the number of sensors in the system.
Keywords
Bragg gratings; fibre optic sensors; surface emitting lasers; time division multiplexing; FBG sensor interrogation system; continuous spec; fiber Bragg gratings; saw tooth signal; scanning speed; trum tuning range; vertical cavity surface emitting laser source; wavelength tuning range; Fiber lasers; Laser tuning; Optical fiber sensors; Optical tuning; Ring lasers; Sensor systems; Surface emitting lasers; Teeth; Tunable circuits and devices; Vertical cavity surface emitting lasers;
fLanguage
English
Publisher
ieee
Conference_Titel
OptoElectronics and Communications Conference, 2009. OECC 2009. 14th
Conference_Location
Hong Kong
Print_ISBN
978-1-4244-4102-0
Electronic_ISBN
978-1-4244-4103-7
Type
conf
DOI
10.1109/OECC.2009.5218136
Filename
5218136
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