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Proceedings Paper

Multiplexed EFPI sensors with ultra-high resolution
Author(s): Nikolai Ushakov; Leonid Liokumovich
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Paper Abstract

An investigation of performance of multiplexed displacement sensors based on extrinsic Fabry-Perot interferometers has been carried out. We have considered serial and parallel configurations and analyzed the issues and advantages of the both. We have also extended the previously developed baseline demodulation algorithm for the case of a system of multiplexed sensors. Serial and parallel multiplexing schemes have been experimentally implemented with 3 and 4 sensing elements, respectively. For both configurations the achieved baseline standard deviations were between 30 and 200 pm, which is, to the best of our knowledge, more than an order less than any other multiplexed EFPI resolution ever reported.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 915722 (2 June 2014); doi: 10.1117/12.2059180
Show Author Affiliations
Nikolai Ushakov, St. Petersburg State Polytechnical Univ. (Russian Federation)
Leonid Liokumovich, St. Petersburg State Polytechnical Univ. (Russian Federation)


Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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