Title :
Time- and wavelength-division multiplexing of FBG sensors using a semiconductor optical amplifier in ring cavity configuration
Author :
Chung, W.H. ; Tam, Hwa-Yaw ; Wai, P.K.A. ; Khandelwal, A.
Author_Institution :
Dept. of Electr. Eng., Hong Kong Polytech. Univ., China
Abstract :
A fiber Bragg grating (FBG) sensor system based on a semiconductor optical amplifier connected in a ring cavity configuration is proposed. The proposed configuration produces high power signal with good extinction ratio for FBGs with ∼1% reflectivity. A sensor system consists of four group of three FBGs of different wavelengths was constructed to demonstrate time- and wavelength-division multiplexing of FBG sensors.
Keywords :
Bragg gratings; fibre optic sensors; optical fibres; reflectivity; ring lasers; semiconductor optical amplifiers; time division multiplexing; wavelength division multiplexing; FBG sensors; extinction ratio; fiber Bragg grating; reflectivity; ring cavity configuration; semiconductor optical amplifier; time-division multiplexing; wavelength division multiplexing; Bragg gratings; Fiber gratings; Optical arrays; Optical fiber sensors; Optical sensors; Reflectivity; Semiconductor optical amplifiers; Sensor arrays; Sensor systems; Wavelength division multiplexing; Fiber Bragg grating (FBG); semiconductor optical amplifier; sensors; time-division multiplexing (TDM); wavelength-division multiplexing (WDM);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.859484
