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

Volume

6

Issue

1

fYear

1988

fDate

1/1/1988 12:00:00 AM

Firstpage

17

Lastpage

20

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;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.3956

Filename

3956