THERMAL PERFORMANCE OF METAL-CLAD FIBER BRAGG GRATING SENSORS

Citation
Gc. Lin et al., THERMAL PERFORMANCE OF METAL-CLAD FIBER BRAGG GRATING SENSORS, IEEE photonics technology letters, 10(3), 1998, pp. 406-408
Citations number
6
Categorie Soggetti
Optics,"Physics, Applied
ISSN journal
10411135
Volume
10
Issue
3
Year of publication
1998
Pages
406 - 408
Database
ISI
SICI code
1041-1135(1998)10:3<406:TPOMFB>2.0.ZU;2-G
Abstract
We demonstrate the higher temperature sensitivity of a fiber Bragg gra ting (FBG) sensor when it is clad with a metal of a large thermal expa nsion coefficient, With lead (solder) cladding, the sensitivity of Bra gg wavelength shift can be enhanced by about five (four) times, A theo retical model was adopted to show quite consistent results, It was fou nd that thermal annealing was crucial for preparing high-quality fiber Bragg grating sensors with metal claddings.