Sensor system for measuring temperature changes using alternative detection of polarization changes

Martin Kyselak; Karel Slavicek; David Grenar

doi:10.1117/12.2547319

12 November 2019 Sensor system for measuring temperature changes using alternative detection of polarization changes

Martin Kyselak, Karel Slavicek, David Grenar

Proceedings Volume 11197, SPIE Future Sensing Technologies; 111971A (2019) https://doi.org/10.1117/12.2547319
Event: SPIE Future Sensing Technologies, 2019, Tokyo, Japan

Abstract

Applications in sensor systems utilize, for example, changes in the polarization of light in an optical fibre during temperature changes. The principle of operation is based on the specific propagation of polarized light by special optical fibres, which, due to their construction, keep the light in two axes, but the speed of their propagation and thus the instantaneous state of polarization of light change. It has been shown that by suitable methods it is possible to transform changes in light polarization into changes in light intensity, which can be detected very effectively by a photodiode. This method has been practically verified, implemented by fibre components and confirmed to be suitable for implementing a fibre sensor of thermal field disruption. The aim of this work is to point out the current possibilities of using polarized light in sensor technology. This polarization system can efficiently secure areas, the surrounding environment and monitor the changes that occur.

Citation Download Citation

Martin Kyselak, Karel Slavicek, and David Grenar "Sensor system for measuring temperature changes using alternative detection of polarization changes", Proc. SPIE 11197, SPIE Future Sensing Technologies, 111971A (12 November 2019); https://doi.org/10.1117/12.2547319

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