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Proceedings Paper

Electronic speckle-interferometry method for processing of multimode interferometry sensor output signal
Author(s): Oleg B. Vitrik; Yuri N. Kulchin; Oleg G. Maxaev; Oleg V. Kirichenko; Oleg T. Kamenev; Yuri S. Petrov
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Paper Abstract

Single fiber multimode interferometers (SMI) have good prospects for the physical field parameters registrations. SMI advantages are the height stability of its performances, easy fitness with light sources, and the great simplicity of its optical scheme. External influence on the fiber causes the changes of light spatial distribution in the intermode interference speckle pattern. However speckle position shifts are not directly related to the external influence value. So it is difficult to apply the methods of garantitative interferometry measuring which had developed for non-single-fiber optic interferometers. It is necessary to use complex spatial filtering methods. The spatial filter of intensity correlation (SFIC) is an effective element for SMI output signal processing. But temperature changes of fiber performances limit the band of real SFIC application. Electronics analogy of dynamic SFIC can show the very good results for SMI data processing. So the main purpose of this paper is development of the electronic speckle-interferometry method.

Paper Details

Date Published: 10 November 1995
PDF: 4 pages
Proc. SPIE 2647, International Conference on Holography and Correlation Optics, (10 November 1995); doi: 10.1117/12.226704
Show Author Affiliations
Oleg B. Vitrik, Far Eastern State Technical Univ. (Russia)
Yuri N. Kulchin, Far Eastern State Technical Univ. (Russia)
Oleg G. Maxaev, Far Eastern State Technical Univ. (Russia)
Oleg V. Kirichenko, Far Eastern State Technical Univ. (Russia)
Oleg T. Kamenev, Far Eastern State Technical Univ. (Russia)
Yuri S. Petrov, Far Eastern State Technical Univ. (Russia)


Published in SPIE Proceedings Vol. 2647:
International Conference on Holography and Correlation Optics
Oleg V. Angelsky, Editor(s)

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