Title :
Determination of the individual strain-optic coefficients in single-mode optical fibres
Author :
Bertholds, Axel ; Dändliker, Réne
Author_Institution :
Inst. of Microtechnol., Neuchatel Univ., Switzerland
fDate :
1/1/1988 12:00:00 AM
Abstract :
A method to determine the individual strain-optic coefficients in single-mode fibers is described. It is based on two photoelastic experiments, namely, the polarimetric measurement of optical activity induced by mechanical twist and the interferometric measurement of optical-path-length change induced by static longitudinal strain. For fibers with pure silica core and B2O3 doped cladding, the optical activity per unit twist rate and the phase change per unit fiber elongation have been measured to be 0.1472 and 1.150×107 rad/m, respectively. The strain-optic coefficients have been measured to be p11=0.113 and p12=0.252, 7% lower than those of bulk silica
Keywords :
optical fibres; optical rotation; photoelasticity; SiO2 fibre core; SiO2:B2O3 cladding; fiber elongation; interferometric measurement; longitudinal strain; mechanical twist; optical activity; optical-path-length change; photoelastic experiments; polarimetric measurement; pure silica core; single-mode optical fibres; strain-optic coefficients; Mechanical variables measurement; Optical fiber polarization; Optical fibers; Optical interferometry; Optical refraction; Optical sensors; Optical variables control; Photoelasticity; Silicon compounds; Strain measurement;
Journal_Title :
Lightwave Technology, Journal of
