Sampled Fiber Bragg Grating spectral synthesis

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URI: http://hdl.handle.net/10902/2203
ISSN: 1094-4087
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Autoría
Rodríguez Cobo, LuisAutoridad Unican; Cobo García, AdolfoAutoridad Unican; López Higuera, José MiguelAutoridad Unican
Fecha
2012-09-24
Derechos
© 2012 Optical Society of America. This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OE.20.022429. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Publicado en
Optics Express, 2012, 20(20), 22429-22441
Editorial
The Optical Society (OSA)
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Palabras clave
Fiber Bragg grating
Spectrum analysis
Resumen/Abstract
In this paper, a technique to estimate the deformation profile of a Sampled Fiber Bragg Grating (SFBG) is proposed and experimentally verified. From the SFBG intensity reflection spectrum, any arbitrary longitudinal axis deformation profile applied to a SFBG is estimated. The synthesis algorithm combines a custom defined error metric to compare the measured and the synthetic spectra and the Particle Swarm Optimization technique to get the deformation profile. Using controlled deformation profiles, the proposed method has been successfully checked by means of simulated and experimental tests. The results obtained under different controlled cases show a remarkable repetitiveness (< 50 με) and good spatial accuracy (< 1 mm).
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