Yang, HZ;Qiao, XG;Wang, YP;Ali, MM;Lai, MH;Lim, KS;Ahmad, H

2015

January

Ieee Photonics Technology Letters

In-Fiber Gratings for Simultaneous Monitoring Temperature and Strain in Ultrahigh Temperature

Published

21 ()

DISCRIMINATION SENSORS

27

58

61

In this letter, a pair of regenerated gratings with Bragg wavelengths of 1547 and 1304 nm in a single piece of single-mode fiber has been fabricated for simultaneous monitoring of temperature and strain in ultrahigh temperature environment. A 3 x 3 matrix is used to characterize the cross sensitivity of the proposed sensor in which the strain sensitivity varies with temperature change. The proposed structure exhibits the deviation of 28.3 mu epsilon and 4.1 degrees C at the ranges of 0-1000 mu epsilon and 25 degrees C-900 degrees C, respectively.

PISCATAWAY

1041-1135

10.1109/LPT.2014.2361768