Title :
Enhanced Sensitivity of the FBG Temperature Sensor Based on the PbO-GeO
-SiO
Glass Optic
Author :
Ju, Seongmin ; Watekar, Pramod Ramdasrao ; Han, Won-Taek
Author_Institution :
Dept. of Inf. & Commun, Grad. Program of Photonics & Appl. Phys., Gwangju, South Korea
Abstract :
We developed and demonstrated a highly sensitive fiber Bragg grating (FBG) temperature sensor by using the PbO-GeO2-SiO2 glass optical fiber. Temperature sensitivity of the FBG sensor based on the PbO-GeO2-SiO2 glass optical fiber was about 40% improved to the 0.0173 nm/°C by the thermal expansion increase of the fiber.
Keywords :
Bragg gratings; fibre optic sensors; germanium compounds; lead compounds; optical glass; silicon compounds; temperature sensors; thermal expansion; FBG temperature sensor; PbO-GeO2-SiO2; fiber Bragg grating temperature sensor; glass optical fiber; sensitivity enhancement; thermal expansion; Bragg gratings; Fiber gratings; Glass; Optical fiber sensors; Optical fibers; Optical reflection; Refractive index; Temperature sensors; Thermal expansion; Time measurement; Fiber Bragg grating (FBG); lead oxide; optical fiber; optical fiber sensor; temperature sensor;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2010.2060472