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Proceedings Paper

Adaptive fiber optic interferometer with CdTe crystal for vibrations measurement
Author(s): Roman V. Romashko; Salvatore Di Giloramo; Ervin Nippolainen; Jean Claude Launay; Alexei A. Kamshilin
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Paper Abstract

An adaptive fiber-optical measuring system for vibrations monitoring, which is based on dynamic reflection hologram recorded in the photorefractive crystal of cubic symmetry without applying any electrical field is developed. Adaptive properties of dynamic hologram enable the solution of a interferometer's working point uncontrollable drift problem caused by external factors. Use of semiconductor crystal CdTe with fast recording time of a dynamic hologram makes it possible to achieve high cutoff frequencies at reasonably low light intensities. As a result the measuring system is characterized by low energy consumption and ability of stable operation of long duration in real environment. Theoretical analysis has allowed us to find the optimal set of parameters for both interacting waves and crystal to reach the maximal sensitivity of the measuring system.

Paper Details

Date Published: 21 June 2006
PDF: 8 pages
Proc. SPIE 6345, Seventh International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, 634516 (21 June 2006); doi: 10.1117/12.693162
Show Author Affiliations
Roman V. Romashko, Institute of Automation and Control Processes (Russia)
Salvatore Di Giloramo, Univ. of Kuopio (Finland)
Ervin Nippolainen, Univ. of Kuopio (Finland)
Jean Claude Launay, CNRS, Bordeaux Institute of Condensed Matter Chemistry (France)
Alexei A. Kamshilin, Univ. of Kuopio (Finland)


Published in SPIE Proceedings Vol. 6345:
Seventh International Conference on Vibration Measurements by Laser Techniques: Advances and Applications
Enrico Primo Tomasini, Editor(s)

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