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Proceedings Paper

High-reliable self-calibrated signal processing method for interferometric fiber optic sensors
Author(s): Sergey A. Egorov; Anatoly N. Mamaev; Igor G. Likhachiev
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Paper Abstract

The new method for straightforward spectral signal processing in interferometric fiber-optic sensors is presented. Its main idea is to analyze the output spectrum of sensing interferometer and separate it from different noise sources in the domain of Fourier images. The absolute and accurate value of OPD can be found directly from the spectral dependence of the analytical signal of interferometer's output signal. The technique doesn't suffer from power and spectral fluctuations of LED and sufficiently noise resistant. It is also insensitive to the influence of parasitic interferometers appearing in the optical connectors and other parts of the sensor. Devices based on such principles don't need recalibration after switching on and further operation. The method has a good potential for combining sensors in a network.

Paper Details

Date Published: 3 January 1996
PDF: 5 pages
Proc. SPIE 2594, Self-Calibrated Intelligent Optical Sensors and Systems, (3 January 1996); doi: 10.1117/12.229231
Show Author Affiliations
Sergey A. Egorov, SVET Ltd. (Russia)
Anatoly N. Mamaev, SVET Ltd. (Russia)
Igor G. Likhachiev, SVET Ltd. (Russia)

Published in SPIE Proceedings Vol. 2594:
Self-Calibrated Intelligent Optical Sensors and Systems
Anbo Wang, Editor(s)

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