Sensitivity distribution of a vibration sensor based on Mach-Zehnder interferometer designed inside the window system

Ondrej Zboril; Jan Nedoma; Jakub Cubik; Martin Novak; Lukas Bednarek; Marcel Fajkus; Vladimir Vasinek

doi:10.1117/12.2239548

27 April 2016 Sensitivity distribution of a vibration sensor based on Mach-Zehnder interferometer designed inside the window system

Ondrej Zboril, Jan Nedoma, Jakub Cubik, Martin Novak, Lukas Bednarek, Marcel Fajkus, Vladimir Vasinek

Author Affiliations +

Proceedings Volume 9889, Optical Modelling and Design IV; 98892C (2016) https://doi.org/10.1117/12.2239548
Event: SPIE Photonics Europe, 2016, Brussels, Belgium

Abstract

Interferometric sensors are very accurate and sensitive sensors that due to the extreme sensitivity allow sensing vibration and acoustic signals. This paper describes a new method of implementation of Mach-Zehnder interferometer for sensing of vibrations caused by touching on the window panes. Window panes are part of plastic windows, in which the reference arm of the interferometer is mounted and isolated inside the frame, a measuring arm of the interferometer is fixed to the window pane and it is mounted under the cover of the window frame. It prevents visibility of the optical fiber and this arrangement is the basis for the safety system. For the construction of the vibration sensor standard elements of communication networks are used - optical fiber according to G.652D and 1x2 splitters with dividing ratio 1:1. Interferometer operated at a wavelength of 1550 nm. The paper analyses the sensitivity of the window in a 12x12 measuring points matrix, there is specified sensitivity distribution of the window pane.

Citation Download Citation

Ondrej Zboril, Jan Nedoma, Jakub Cubik, Martin Novak, Lukas Bednarek, Marcel Fajkus, and Vladimir Vasinek "Sensitivity distribution of a vibration sensor based on Mach-Zehnder interferometer designed inside the window system", Proc. SPIE 9889, Optical Modelling and Design IV, 98892C (27 April 2016); https://doi.org/10.1117/12.2239548

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