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Titolo:
Two-axis bend measurement using multicore optical fibre
Autore:
Gander, MJ; Macrae, D; Galliot, EAC; McBride, R; Jones, JDC; Blanchard, PM; Burnett, JG; Greenaway, AH; Inci, MN;
Indirizzi:
Heriot Watt Univ, Dept Phys, Edinburgh EH14 4AS, Midlothian, Scotland Heriot Watt Univ Edinburgh Midlothian Scotland EH14 4AS lothian, Scotland Heriot Watt Univ, Dept Mech & Chem Engn, Edinburgh EH14 4AS, Midlothian, Scotland Heriot Watt Univ Edinburgh Midlothian Scotland EH14 4AS lothian, Scotland DERA, Malvern WR14 3PS, Worcs, England DERA Malvern Worcs England WR14 3PS ERA, Malvern WR14 3PS, Worcs, England Bogazici Univ, Dept Phys, TR-80815 Bebek, Istanbul, Turkey Bogazici Univ Bebek Istanbul Turkey TR-80815 0815 Bebek, Istanbul, Turkey
Titolo Testata:
OPTICS COMMUNICATIONS
fascicolo: 1-3, volume: 182, anno: 2000,
pagine: 115 - 121
SICI:
0030-4018(20000801)182:1-3<115:TBMUMO>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
ARRAY; SHAPE;
Keywords:
multicore; optical; fibre; bend; four-core; strain;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
--discip_EC--
Citazioni:
14
Recensione:
Indirizzi per estratti:
Indirizzo: Gander, MJ Heriot Watt Univ, Dept Phys, Edinburgh EH14 4AS, Midlothian, Scotland Heriot Watt Univ Edinburgh Midlothian Scotland EH14 4AS otland
Citazione:
M.J. Gander et al., "Two-axis bend measurement using multicore optical fibre", OPT COMMUN, 182(1-3), 2000, pp. 115-121

Abstract

We describe the first use of a four-core optical fibre to measure bending about two orthogonal axes simultaneously. Individual cores in the fibre actas independent strain gauges where local curvature determines the difference in strain between cores. The multicore sensing element, interrogated in reflection, generates a two-dimensional far-field interferogram. The component of fibre curvature in the plane of the two cores shifts the corresponding fringes in the interferogram. Bend angle is then calculated using phase values derived from Fourier analysis of the far-field interferogram. This technique achieved a bend angle resolution better than 120 mu rad. (C) 2000 Published by Elsevier Science B.V.

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Documento generato il 18/09/20 alle ore 15:58:15