Title :
Bent SMS fibre structure for temperature measurement
Author :
Wu, Qingyao ; Semenova, Yuliya ; Hatta, A.M. ; Wang, Peng ; Farrell, Gerald
Author_Institution :
Photonics Res. Center, Dublin Inst. of Technol., Dublin, Ireland
Abstract :
A temperature sensor fabricated using a bent singlemode-multimode-singlemode (SMS) fibre structure is presented. Experimental results show, that compared to a sensor based on a straight SMS fibre structure, this temperature sensor has a much higher sensitivity of 31.97 pm/°C over a temperature range from 20 to 80°C, based on the measurement of the mean 3 dB wavelength shift, and offers a resolution of 0.1°C for a temperature range from 45 to 80°C when demodulated by a simple ratiometric interrogation technique.
Keywords :
fibre optic sensors; temperature measurement; temperature sensors; bent SMS fibre structure; noise figure 3 dB; ratiometric interrogation technique; singlemode-multimode-singlemode; temperature 20 degC to 80 degC; temperature measurement;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.1769
