Birefringence measurement under hydrostatic pressure in twisted highly birefringent fibers

Author

Wolinski, T.R. ; Bock, Wojtek J.

Author_Institution

Inst. of Phys., Warsaw Univ. of Technol., Poland

Volume

44

Issue

3

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

708

Lastpage

711

Abstract

A new method of birefringence measurement in highly birefringent fibers influenced by hydrostatic pressure conditions up to 100 MPa is presented. The birefringence measurement method is based on twist-induced effects and has never been applied before in a high-pressure environment. The experiments were conducted using a specially designed pressure facility, which made it possible to simultaneously generate several mechanical perturbations, including twist and hydrostatic stress, and to investigate their effects on mode transmission in optical fibers. The results indicate that in the case of HB single-mode bow-tie fibers, hydrostatic pressure up to 100 MPa increased birefringence with a mean coefficient of (1/ΔB₀)(Δβ)/dp=0.2%/MPa which is in very close agreement with our previous measurement based on Rayleigh scattering

Keywords

birefringence; fibre optic sensors; high-pressure techniques; hydrostatics; optical fibres; pressure sensors; 100 MPa; Rayleigh scattering; birefringence measurement; high-pressure environment; hydrostatic pressure; hydrostatic stress; mean coefficient; mechanical perturbations; mode transmission; optical fibers; single-mode bow-tie fibers; twist; twist-induced effects; twisted highly birefringent fibers; Birefringence; Optical design; Optical fiber devices; Optical fiber polarization; Optical fiber sensors; Optical fiber theory; Optical fibers; Pressure measurement; Rayleigh scattering; Stress;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.387314

Filename

387314