DocumentCode :
270479
Title :
Unbiased Electro-Optic Waveguide as a Sensitive Nuclear Magnetic Resonance Sensor
Author :
Aydé, Reina ; Gaborit, Gwenael ; Dahdah, Jean ; Duvillaret, Lionel ; Courjal, N. ; Guyot, Clement ; Sablong, R. ; Perrier, Anne-Laure ; Beuf, Olivier
Author_Institution :
CREATIS, Univ. de Lyon, Villeurbanne, France
Volume :
26
Issue :
12
fYear :
2014
fDate :
15-Jun-14
Firstpage :
1266
Lastpage :
1269
Abstract :
A pigtailed Ti:LiNbO3 waveguide is here associated to a specific nuclear magnetic resonant coil to perform a low invasive magnetic field measurement. The developed device exploits a passive electro-optic transduction between the measured magnetic field and polarization state modulation of a laser probe beam. Because of the use of integrated optics, the coil electromotive force induces a dramatically enhanced electric field, thus leading to sensitivity improvement. A minimum detectable magnetic field lower than 60 fT. Hz-1/2 is achieved at the resonant frequency of 128 MHz. A dynamic range exceeding 100 dB is experimentally demonstrated.
Keywords :
electric potential; electro-optical modulation; integrated optics; light polarisation; lithium compounds; magnetic field measurement; magnetic sensors; measurement by laser beam; optical waveguides; titanium; LiNbO3:Ti; coil electromotive force; electric field; frequency 128 MHz; integrated optics; laser probe beam; low invasive magnetic field measurement; nuclear magnetic resonant coil; passive electro-optic transduction; pigtailed waveguide; polarization state modulation; resonant frequency; sensitive nuclear magnetic resonance sensor; unbiased electro-optic waveguide; Coils; Crystals; Electrooptical waveguides; Magnetic resonance imaging; Optical imaging; Optical sensors; Electro-optical devices; magnetic field measurement; magnetic resonance imaging; nuclear magnetic resonance; optical sensors;
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/LPT.2014.2321099
Filename :
6808528
Link To Document :
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