Vibration caused by train detection using state-of-polarization changes measurement

Petr Dejdar; Adrian Tomasov; Petr Munster; Tomas Horvath

doi:10.1117/12.2618739

27 May 2022 Vibration caused by train detection using state-of-polarization changes measurement

Petr Dejdar, Adrian Tomasov, Petr Munster, Tomas Horvath

Proceedings Volume 12105, Fiber Optic Sensors and Applications XVIII; 1210506 (2022) https://doi.org/10.1117/12.2618739
Event: SPIE Defense + Commercial Sensing, 2022, Orlando, Florida, United States

Abstract

The paper describes the possibilities of using the detection of fast and slow changes in the state of polarization for the detection of vibrations by an optical single-mode (SM) fiber. The system consists of a polarization beam splitter and a balanced photodetector. This sensing system is cost-effective, which contributes to its use in real operation. On the basis of an experiment with buried fiber near the railroad, the possibility of detecting vibrations with this system was proved. It is possible with simple analyzes to recognize the types of trains and their speed.

Conference Presentation

Citation Download Citation

Petr Dejdar, Adrian Tomasov, Petr Munster, and Tomas Horvath "Vibration caused by train detection using state-of-polarization changes measurement", Proc. SPIE 12105, Fiber Optic Sensors and Applications XVIII, 1210506 (27 May 2022); https://doi.org/10.1117/12.2618739

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