Application of the fibre-optic interferometer as a rotational seismograph type AFORS

Anna Kurzych; Leszek R. Jaroszewicz; Zbigniew Krajewski; Krzysztof P. Teisseyre; Jerzy K. Kowalski

doi:10.1117/12.2076131

5 December 2014 Application of the fibre-optic interferometer as a rotational seismograph type AFORS

Anna Kurzych, Leszek R. Jaroszewicz, Zbigniew Krajewski, Krzysztof P. Teisseyre, Jerzy K. Kowalski

Proceedings Volume 9441, 19th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics; 944114 (2014) https://doi.org/10.1117/12.2076131
Event: XIX Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 2014, Jelenia Gora, Poland

Abstract

In this article we show a fibre-optic device based on the Sagnac effect designed for measuring rotational motions which appear during seismic events. The experimental investigations of presented Autonomous Fiber-Optical Rotational Seismographs indicate that such devices keep the accuracy no less than 5.1·10^-9 to 5.5·10^-8 rad/s in the frequency band from 0.83 Hz to 106.15 Hz. Furthermore, their operations are controlled fully remotely via Internet. We present the comparison of results obtained by such system in the field test with a mechanical rotational seismometer which is mounted simultaneously in the seismological observatory in Książ, Poland.

Citation Download Citation

Anna Kurzych, Leszek R. Jaroszewicz, Zbigniew Krajewski, Krzysztof P. Teisseyre, and Jerzy K. Kowalski "Application of the fibre-optic interferometer as a rotational seismograph type AFORS", Proc. SPIE 9441, 19th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 944114 (5 December 2014); https://doi.org/10.1117/12.2076131

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