Linear electro-optic effect for nuclear magnetic resonance coil

R. Ayde; Gwenaël Gaborit; Jean Dahdah; Lionel Duvillaret; Raphaël Sablong; Anne-Laure Perrier; Olivier Beuf

doi:10.1117/12.2052906

15 May 2014 Linear electro-optic effect for nuclear magnetic resonance coil

R. Ayde, Gwenaël Gaborit, Jean Dahdah, Lionel Duvillaret, Raphaël Sablong, Anne-Laure Perrier, Olivier Beuf

Proceedings Volume 9141, Optical Sensing and Detection III; 91411J (2014) https://doi.org/10.1117/12.2052906
Event: SPIE Photonics Europe, 2014, Brussels, Belgium

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.

Citation Download Citation

R. Ayde, Gwenaël Gaborit, Jean Dahdah, Lionel Duvillaret, Raphaël Sablong, Anne-Laure Perrier, and Olivier Beuf "Linear electro-optic effect for nuclear magnetic resonance coil", Proc. SPIE 9141, Optical Sensing and Detection III, 91411J (15 May 2014); https://doi.org/10.1117/12.2052906

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