Title :
150-km Long Distance FBG Temperature and Vibration Sensor System Based on Stimulated Raman Amplification
Author :
Hu, Junhao ; Chen, Zhihao ; Yu, Changyuan
Author_Institution :
Electr. & Comput. Eng. Dept., Nat. Univ. of Singapore, Singapore, Singapore
fDate :
4/15/2012 12:00:00 AM
Abstract :
A 150-km long distance fiber Bragg Grating (FBG) temperature and vibration sensor system was proposed and demonstrated by using the stimulated Raman amplification. It can achieve 150-km measurement range by using a low power 1480-nm laser as the Stokes of the pump laser at 1395 nm in the progress of stimulated Raman amplification. And the whole system only consist one Raman pump laser source with 1-W power at 1395 nm, a low-power 1480-nm laser and two segments of erbium doped fiber (EDF) at the location of 50 km and 75 km separately.
Keywords :
Bragg gratings; Raman lasers; fibre optic sensors; measurement by laser beam; optical fibre amplifiers; optical pumping; stimulated Raman scattering; temperature sensors; vibration measurement; Raman pump laser source; distance 150 km; distance 50 km; distance 75 km; erbium doped fiber; fiber Bragg grating; long distance FBG temperature sensor; power 1 W; stimulated Raman amplification; vibration sensor system; wavelength 1395 nm; wavelength 1480 nm; Laser excitation; Optical fiber amplifiers; Optical fiber sensors; Power lasers; Pump lasers; Sensor systems; Vibrations; FBG sensor; Long distance sensor; stimulated Raman scattering; temperature and vibration sensor;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2011.2172573
