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Título:
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Positioning a focused Gaussian beam inside a refractive cylinder
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Autores:
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Bernabeu Martínez, Eusebio ;
Salgado Remacha, Francisco Javier ;
Sánchez Martín, José Antonio
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Tipo de documento:
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texto impreso
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Editorial:
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Elsevier Sci. Ltd., 2014-04
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Optica
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Tipo = Artículo
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Resumen:
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We present in this work a study of the diffraction of a focused Gaussian beam by a microrefractive cylinder, and the dependence of the far field diffracted pattern with the location of the beam focal plane, relative to the center of the cylinder. A numerical study of the problem is carried out and validated with experimental verification. We center our attention on two parameters: the divergence and the number of peaks of the diffracted field. Both present a minimum for a particular position of the focal plane inside the refractive cylinder. This analysis can be used as a novel control technique for ablation of optical fibers and it can also be used as a criterion for the proper location of a focused laser beam inside an optical fiber with high accuracy. This criterion, based on the distribution of the far-field diffracted pattern, can be automated or used as a visual clue for a human operator.
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En línea:
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https://eprints.ucm.es/id/eprint/25992/1/Bernabeu%2CE01.pdf
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