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