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17 May 2011 Dynamical interrogation of interferometric sensor arrays by a simple polarimetric setup
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Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 77531X (2011) https://doi.org/10.1117/12.886065
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada
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.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Y. Katz and A. Eyal "Dynamical interrogation of interferometric sensor arrays by a simple polarimetric setup", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77531X (17 May 2011); https://doi.org/10.1117/12.886065
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