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Proceedings Paper

Linear electro-optic effect for nuclear magnetic resonance coil
Author(s): R. Ayde; Gwenaël Gaborit; Jean Dahdah; Lionel Duvillaret; Raphaël Sablong; Anne-Laure Perrier; Olivier Beuf
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Paper Abstract

An electrooptic transduction is here used to perform a low invasive characterization of the magnetic field in the context of magnetic resonance imaging. A resonant coil is coupled to a passive electrooptic crystal and the electromotive force of the magnetic field sensor is converted into a polarization state modulation of a laser probe beam. The optical conversion is demonstrated and lead to a fiber remote measurement of the magnetic field. The setup sensitivity and dynamics are finally dramatically enhanced using a LiNbO3 integrated waveguide. The minimum detectable field is as low as 60 fT.Hz-1/2 and the dynamics exceeds 100 dB.

Paper Details

Date Published: 15 May 2014
PDF: 7 pages
Proc. SPIE 9141, Optical Sensing and Detection III, 91411J (15 May 2014); doi: 10.1117/12.2052906
Show Author Affiliations
R. Ayde, CREATIS, CNRS, Univ. Lyon 1 (France)
Gwenaël Gaborit, IMEP-LAHC, CNRS, Univ. de Savoie (France)
Kapteos (France)
Jean Dahdah, Kapteos (France)
Lionel Duvillaret, Kapteos (France)
Raphaël Sablong, CREATIS, CNRS, Univ. Lyon 1 (France)
Anne-Laure Perrier, CREATIS, CNRS, Univ. Lyon 1 (France)
Olivier Beuf, CREATIS, CNRS, Univ. Lyon 1 (France)

Published in SPIE Proceedings Vol. 9141:
Optical Sensing and Detection III
Francis Berghmans; Anna G. Mignani; Piet De Moor, Editor(s)

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