Simultaneous Measurement of two Strain Components Using 3 × 3 and 2 × 2 Coupler-Based Passive Demodulation of Optical Fiber Sensors

James S. Sirkis, Yu-Lung Lo

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

This paper uses 3x3 and 2×2 coupler passive demodulation of combined Michelson and polarimetric optical fiber sensors to simultaneously measure axial and transverse strain components in a single optical fiber sensor. The separated Michelson and polarimetric signals are used with isothermal Michelson and polarimetric phase strain models to provide two independent equations describing the strain in the fiber. These equations provide enough information to simultaneously calculate axial and transverse strains in surface mounted sensors. Experiments performed on vibrating cantilever beams show good agreement with measurements made with resistance strain gauges.

Original languageEnglish
Pages (from-to)2153-2161
Number of pages9
JournalJournal of Lightwave Technology
Volume12
Issue number12
DOIs
Publication statusPublished - 1994 Jan 1

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demodulation
couplers
axial strain
optical fibers
sensors
cantilever beams
strain gages
fibers

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

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Simultaneous Measurement of two Strain Components Using 3 × 3 and 2 × 2 Coupler-Based Passive Demodulation of Optical Fiber Sensors. / Sirkis, James S.; Lo, Yu-Lung.

In: Journal of Lightwave Technology, Vol. 12, No. 12, 01.01.1994, p. 2153-2161.

Research output: Contribution to journalArticle

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