Fiber-optic-based absolute displacement sensors at 1500 nm by means of a variant of channeled spectrum signal recovery |
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| Authors: | Boulet Christophe Hathaway Mark Jackson David A |
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| Affiliation: | School of Physical Sciences, Applied Optics Group, University of Kent, Canterbury, UK. christophe.boulet@baesystems.com |
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| Abstract: | ![]()
An absolute displacement-sensing system based on channeled spectrum processing capable of simultaneous interrogation of fiber Bragg gratings and fiber-optic interferometric sensors is presented in which the role of the optical spectrometer is performed by a scanning Fabry-Perot filter. We demonstrate a resolution of +/-50 nm with an estimated dynamic range of 1 part in 10(5). |
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