Abstract

This paper provides the details of a multiaxis electric field sensor. The sensing element consists of three slab coupled optical-fiber sensors that are combined to allow directional electric field sensing. The packaged three-axis sensor has a small cross-sectional area of $0.5\mathrm{cm}\times 0.5\mathrm{cm}$ by using an $x$-cut crystal. A method is described that uses a sensitivity-matrix approach to map the measurements to field components. The calibration and testing are described, resulting in an average error of 1.5°.

© 2013 Optical Society of America

Frequency dependence of slab coupled optical sensor sensitivity

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