Dual-cavity interferometric wavelength-shift detection for in-fiber Bragg grating sensors

Y.J. Rao, D.A. Jackson, L. Zhang, I. Bennion

Research output: Contribution to journalArticle

Abstract

A dual-cavity interrogation method used to enhance the unambiguous measurement range of in-fiber Bragg grating sensors with high-resolution interferometric wavelength-shift detection is described. This novel technique is based on the use of two sets of fringes obtained with a stepped interferometric wavelength scanner with dual cavity lengths. We demonstrate the concept by interrogating an in-fiber grating temperature sensor with a stepped Michelson wavelength scanner. © 1996 Optical Society of America.

Original languageEnglish
Pages (from-to)1556-1558
Number of pages3
JournalOptics Letters
Volume21
Issue number19
DOIs
Publication statusPublished - 1 Oct 1996

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Bragg gratings
scanners
cavities
fibers
shift
sensors
wavelengths
interrogation
rangefinding
temperature sensors
gratings
high resolution

Cite this

Rao, Y.J. ; Jackson, D.A. ; Zhang, L. ; Bennion, I. / Dual-cavity interferometric wavelength-shift detection for in-fiber Bragg grating sensors. In: Optics Letters. 1996 ; Vol. 21, No. 19. pp. 1556-1558.
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Dual-cavity interferometric wavelength-shift detection for in-fiber Bragg grating sensors. / Rao, Y.J.; Jackson, D.A.; Zhang, L.; Bennion, I.

In: Optics Letters, Vol. 21, No. 19, 01.10.1996, p. 1556-1558.

Research output: Contribution to journalArticle

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