Mg. Xu et al., TEMPERATURE-INDEPENDENT STRAIN SENSOR USING A CHIRPED BRAGG GRATING IN A TAPERED OPTICAL-FIBER, Electronics Letters, 31(10), 1995, pp. 823-825
A novel, temperature-independent strain sensor is demonstrated using a
chirped fibre grating in a tapered optical fibre. The effective bandw
idth of the grating is uniquely dependent on strain and is essentially
temperature-independent. The interrogation simply involves monitoring
the back-reflected intensity from the grating. A strain resolution of
0.1% over a strain measurement range of 4066 mu epsilon has been expe
rimentally achieved.