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Proceedings Paper

Dynamical interrogation of interferometric sensor arrays by a simple polarimetric setup
Author(s): Y. Katz; A. Eyal
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Paper Abstract

Numerous methods have been proposed for multiplexing interferometric sensors into large scale arrays. Previously we described a low loss polarimetric sensor array based on a concatenation of high-birefringence fiber. It was interrogated by a wavelength scanning laser and its output was measured by a polarization analyzer. Here we demonstrate how the same source and detection system can be used to interrogate a different sensor array with increased sensitivity: a cascade of fiber-optic Fabry-Perot interferometers. The auxiliary interferometer, needed for obtaining a synchronized linear frequency grid, is implemented "in-line" and does not require an additional detection and digitizing circuitry. The proposed approach, therefore, constitutes a simple and modular sensor array interrogation scheme in which different arrays of sensors with significantly different sensitivities can be interchanged according to circumstances.

Paper Details

Date Published: 17 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77531X (17 May 2011); doi: 10.1117/12.886065
Show Author Affiliations
Y. Katz, Tel-Aviv Univ. (Israel)
A. Eyal, Tel-Aviv Univ. (Israel)

Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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