Stable phase-modulated fiber-optic sensors for senior electrical engineering laboratory curricula

Author

Vengsarkar, Ashish M. ; Murphy, Kent A. ; Claus, Richard O.

Author_Institution

Fiber & Electro-Opt. Res. Center, Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA

Volume

35

Issue

1

fYear

1992

fDate

2/1/1992 12:00:00 AM

Firstpage

69

Lastpage

75

Abstract

A set of fiber-optic sensing experiments that can be performed by senior undergraduates in a fiber optics laboratory is presented. The experiments are based on two stable phase-modulated sensors: a miniaturized Michelson-type fiber-optic interferometer that is relatively insensitive to temperature drifts; and a two-mode fiber used in a differential interferometric sensing scheme. Methods of construction are described, and several possible experiments are presented. These experiments introduce or strengthen the ideas of interference, elliptical-core fibers, and electromagnetic field propagation in fibers

Keywords

demonstrations; fibre optic sensors; guided light propagation; light interference; light interferometers; student laboratory apparatus; Michelson-type fiber-optic interferometer; differential interferometric sensing; electromagnetic field propagation; elliptical-core fibers; interference; phase-modulated fiber-optic sensors; senior electrical engineering laboratory curricula; stable phase-modulated sensors; two-mode fiber; undergraduates; Electromagnetic interference; Laboratories; Magnetic field induced strain; Optical fiber communication; Optical fiber sensors; Optical fibers; Optical interferometry; Optical propagation; Optical sensors; Temperature sensors;

fLanguage

English

Journal_Title

Education, IEEE Transactions on

Publisher

ieee

ISSN

0018-9359

Type

jour

DOI

10.1109/13.123420

Filename

123420