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Updated: Jul 5, 2026

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
Published on: November 7, 2016
Electric field and temperature measurement using ultra wide bandwidth pigtailed electro-optic probes
Maxime Bernier1, Gwenaël Gaborit, Lionel Duvillaret
1IMEP-LAHC, UMR CNRS 5130, Minatec-INPG, 3 parvis Louis Néel, BP 257,38016 Grenoble Cedex 1, France.
Abstract:
We present pigtailed electro-optic probes that allow a simultaneous measurement of high frequency electric fields and temperature using a unique laser probe beam. This has been achieved by the development of a novel probe design associated with a fully automated servo-controlled optical bench, initially developed to stabilize the electric field sensor response. The developed electro-optic probes present a stable response in outdoors conditions over a time duration exceeding 1 h, a frequency bandwidth from kHz to tens of GHz with a sensitivity of 0.7 Vm(-1)Hz(-(1/2)), and a temperature accuracy of 40 mK.
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