Translator Disclaimer
1 December 2008 Faraday current sensor using space-variant
Author Affiliations +
Abstract
A Faraday current sensor using spatially inhomogeneous analyzers is presented. In the proposed optical architecture, the light waves coming from the sensor head travel in free space reaching a space-variant analyzer, and then they are acquired by a (one-or two-dimensional) photodetector array. This allows a full determination of the Faraday rotation induced by the electrical current, even in the case of a nonideal optical system (e.g., analyzer with poor polarization ratio). The proposed method resembles well-known techniques of phase-shifting interferometry. Validation experiments using linearly variant and azimuthal (radial) analyzers are presented and different detection schemes are compared.
©(2008) Society of Photo-Optical Instrumentation Engineers (SPIE)
Jorge Luis Flores-Nuñez, Jose A. Ferrari, and César Daniel Perciante "Faraday current sensor using space-variant," Optical Engineering 47(12), 123603 (1 December 2008). https://doi.org/10.1117/1.3041772
Published: 1 December 2008
JOURNAL ARTICLE
6 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

Optical fiber current sensor with external conversion
Proceedings of SPIE (September 02 2016)
Portable fiber optic current sensor
Proceedings of SPIE (April 01 1991)
Investigation of magneto-optic effects in optical fibers
Proceedings of SPIE (April 14 2003)

Back to Top