Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Interferometric interrogation of in-fiber Bragg grating sensors without mechanical path length scanning
Autore:
Murphy, DF; Flavin, DA; McBride, R; Jones, JDC;
Indirizzi:
Waterford Inst Technol, Dept Phys & Quantitat Sci, Waterford, Ireland Waterford Inst Technol Waterford Ireland ntitat Sci, Waterford, Ireland Heriot Watt Univ, Dept Mech & Chem Engn, Edinburgh EH14 4AS, Midlothian, Scotland Heriot Watt Univ Edinburgh Midlothian Scotland EH14 4AS lothian, Scotland Heriot Watt Univ, Dept Phys, Edinburgh EH14 4AS, Midlothian, Scotland Heriot Watt Univ Edinburgh Midlothian Scotland EH14 4AS lothian, Scotland
Titolo Testata:
JOURNAL OF LIGHTWAVE TECHNOLOGY
fascicolo: 7, volume: 19, anno: 2001,
pagine: 1004 - 1009
SICI:
0733-8724(200107)19:7<1004:IIOIBG>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
WAVELENGTH-SHIFT DETECTION; FOURIER-TRANSFORM SPECTROMETER; STRAIN-SENSOR; SYSTEM; SCHEME; FILTER;
Keywords:
analytic signal; fiber Bragg grating (FBG); Hilbert transform; spatially scanned interferometry;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
--discip_EC--
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Murphy, DF Waterford Inst Technol, Dept Phys & Quantitat Sci, Waterford, Ireland Waterford Inst Technol Waterford Ireland Waterford, Ireland
Citazione:
D.F. Murphy et al., "Interferometric interrogation of in-fiber Bragg grating sensors without mechanical path length scanning", J LIGHTW T, 19(7), 2001, pp. 1004-1009

Abstract

We report the interrogation of a fiber Bragg grating (FBG) using an interferometer with a tilted mirror such that the optical path difference is a function of position on an array detector. Absolute measurements of mean resonant wavelength from the phase of the analytic signal of the spatial interferogram are determined, and a technique based on using a reference laser tocompensate for performance degrading effects otherwise associated with spatially scanned interferometers is introduced. These measurements are not critically dependent on the accurate location of zero phase position, We haveapplied the technique to the absolute measurement of temperature-induced shifts in the grating resonant wavelength. A resolution of 0.025 nm for a spatially scanned optical path delay of only 200 mum was achieved. The technique has the potential for higher resolutions and for multiplexing.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/12/20 alle ore 16:37:59