White-light interferometric fiber-optic pressure sensor

Author

Bock, Wojtek J. ; Urbanczyk, Waclaw ; Wojcik, Jan ; Beaulieu, Mario

Author_Institution

Dept. d´´Inf., Quebec Univ., Hull, Que., Canada

Volume

44

Issue

3

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

694

Lastpage

697

Abstract

A novel configuration for a fiber-optic white-light interferometric sensor is presented which allows for absolute measurements of hydrostatic pressure with an improved operation range. The performance of two fibers (York bow-tie 800 and especially designed elliptical-core side-hole fiber) used as sensing elements was experimentally studied. The sensor itself was composed of two equal lengths of the fiber spliced at 90°. This structure assures temperature compensation and enables application of a Wollaston prism as a receiving interferometer. A step delay line made of crystalline quartz was used to increase the operation range of the sensor

Keywords

compensation; fibre optic sensors; high-pressure techniques; light interferometers; optical delay lines; optical prisms; pressure sensors; Wollaston prism; York bow-tie; absolute measurement; crystalline quartz; elliptical-core side-hole fiber; receiving interferometer; sensing elements; step delay line m; temperature compensation; white-light interferometric fiber-optic pressure sensor; Electromagnetic compatibility and interference; Mechanical sensors; Optical fiber devices; Optical fiber polarization; Optical fiber sensors; Optical interferometry; Pressure measurement; Sensor phenomena and characterization; Strain measurement; Temperature sensors;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.387311

Filename

387311