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Sensors 2011, 11(1), 806-824; doi:10.3390/s110100806
Review

Recent Advances in the Design of Electro-Optic Sensors for Minimally Destructive Microwave Field Probing

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Received: 8 December 2010 / Revised: 4 January 2011 / Accepted: 11 January 2011 / Published: 12 January 2011
(This article belongs to the Section Physical Sensors)
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Abstract

In this paper we review recent design methodologies for fully dielectric electro-optic sensors that have applications in non-destructive evaluation (NDE) of devices and materials that radiate, guide, or otherwise may be impacted by microwave fields. In many practical NDE situations, fiber-coupled-sensor configurations are preferred due to their advantages over free-space bulk sensors in terms of optical alignment, spatial resolution, and especially, a low degree of field invasiveness. We propose and review five distinct types of fiber-coupled electro-optic sensor probes. The design guidelines for each probe type and their performances in absolute electric-field measurements are compared and summarized.
Keywords: microwave measurement; electro-optic measurement; optical sensing; sensors microwave measurement; electro-optic measurement; optical sensing; sensors
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Lee, D.-J.; Kang, N.-W.; Choi, J.-H.; Kim, J.; Whitaker, J.F. Recent Advances in the Design of Electro-Optic Sensors for Minimally Destructive Microwave Field Probing. Sensors 2011, 11, 806-824.

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