Title :
Fibre optic load sensors with high transverse strain sensitivity based on long-period gratings in B/Ge co-doped fibre
Author :
Liu, Y. ; Zhang, L. ; Bennion, I.
Author_Institution :
Photonics Res. Group, Aston Univ., Birmingham, UK
fDate :
4/15/1999 12:00:00 AM
Abstract :
A novel application is reported of long-period fibre gratings produced in non-high-birefringence fibre as fibre optic load sensors based on the measurement of the transverse strain induced birefringence. A transverse strain sensitivity some 800 times higher than that previously reported for fibre Bragg gratings has been achieved
Keywords :
birefringence; boron; diffraction gratings; fibre optic sensors; germanium; strain sensors; B/Ge co-doped fibre; birefringence; fibre optic load sensor; long-period fibre grating; transverse strain sensitivity;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19990457
