Title :
High-strength fiber Bragg gratings for a temperature-sensing array
Author :
Gu, Xijia ; Guan, Ling ; He, Yifeng ; Zhang, Haibin B. ; Herman, Peter R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Ryerson Univ., Toronto, Ont.
fDate :
6/1/2006 12:00:00 AM
Abstract :
We have successfully demonstrated a one-step laser process of fabricating fiber Bragg grating arrays directly through fiber buffer. A new polysiloxane-based buffer provides high 244-nm transmission and showed no degradation due to UV irradiation or thermal annealing as verified by Weibull analysis of tension tests. The FBG array can withstand over 400-kpsi tension tests and 220degC temperature. The spectral quality of the FBG is compatible with the FBGs currently used by the sensing industry and, therefore, can be interrogated with existing instruments. The laser fabrication process is robust with no coating, stripping, or recoating required
Keywords :
Bragg gratings; Weibull distribution; fibre optic sensors; laser materials processing; temperature sensors; 220 C; Weibull analysis; fiber Bragg gratings; fiber buffer; fiber optic sensor; polysiloxane-based buffer; spectral quality; temperature-sensing array; thermal annealing; ultraviolet irradiation; Annealing; Bragg gratings; Fiber gratings; Fiber lasers; Instruments; Optical arrays; Optical buffering; Optical fiber testing; Temperature sensors; Thermal degradation; FBG array; Fiber Bragg grating (FBG); fiber-optic sensor; high reliability; high strength; temperature sensing;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2006.874494
