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Proceedings Paper

Fast adaptive interferometer based on CdTe crystal and low power radiation
Author(s): Roman V. Romashko; Yuriy N. Kulchin; Salvatore Di Giloramo; Ervin Nippolainen; Jean Claude Launay; Alexei A. Kamshilin
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Paper Abstract

An adaptive fiber-optical interferometer, 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 an interferometer's working point uncontrollable drift problem caused by external factors. 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. 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 industrial environment.

Paper Details

Date Published: 1 August 2007
PDF: 7 pages
Proc. SPIE 6785, ROMOPTO 2006: Eighth Conference on Optics, 678512 (1 August 2007); doi: 10.1117/12.757865
Show Author Affiliations
Roman V. Romashko, Institute of Automation and Control Processes (Russia)
Yuriy N. Kulchin, 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. 6785:
ROMOPTO 2006: Eighth Conference on Optics
Valentin I. Vlad, Editor(s)

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