Title :
Fibre heterostructure for simultaneous strain and temperature measurement
Author :
Wu, Qingyao ; Semenova, Yuliya ; Wang, Peng ; Farrell, Gerald
Author_Institution :
Photonics Res. Centre, Dublin Inst. of Technol., Dublin, Ireland
Abstract :
Reported is an experimental study of a novel fibre heterostructure that utilises multimode interference employing two multimode fibre sections to allow simultaneous measurement of both strain and temperature. By measuring two peak wavelengths, strain and temperature can be determined with a demonstrated sensitivity to strain of 0.35 pm/ in the strain range 0-1556 and a temperature sensitivity of 11.16 pm/°C in the temperature range 10-30°C.
Keywords :
fibre optic sensors; light interferometry; refractive index measurement; strain measurement; temperature measurement; multimode fibre heterostructure; multimode interference; refractive index; strain measurement; strain sensitivity; temperature 10 degC to 30 degC; temperature measurement; temperature sensitivity;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2011.0974
