Title :
Polarimetric strain gauges using high birefringence fibre
Author :
Varnham, M.P. ; Barlow, A.J. ; Payne, D.N. ; Okamoto, K.
Author_Institution :
Southampton University, Department of Electronics, Southampton, UK
Abstract :
When a highly-birefringent fibre is stretched, the birefringence changes. The phenomenon is shown to result from a difference in Poisson´s ratio of the two glasses from which the fibre is constructed. Experimental verification is given and a simple polarimetric strain gauge made from bow-tie fibre is demonstrated.
Keywords :
birefringence; fibre optics; nonelectric sensing devices; polarimetry; strain gauges; Poisson´s ratio; bow-tie fibre; high birefringence fibre; nonelectric sensing devices; optical fibres; polarimetric strain gauge;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19830476
