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HETERODYNE POLARIMETRIC DETECTION FOR REMOTE SENSING

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Abstract

Polarimetric detection is a very interesting technique for signal recovery in many types of sensors, where the relevant physical quantity is transduced into polarization changes through the electro- or elasto-optic effect. Single-mode fibers have been extensively employed for sensing temperature, stress, current, magnetic field [1]. In particular the fiber itself, being a twin mode guide, offers the possibility of realizing a common path polarization interferometer, which combines transducer and transmission line. The advantage of this configuration over ordinary interferometers is a higher immunity level to environmental and laser phase noise.

© 1988 Optical Society of America

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