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Mechanically-Induced Long-Period Fiber Gratings Using Laminated Plates

This work presents a formation method of mechanically-induced long-period fiber gratings using laminated plates. The mechanically-induced long-period fiber grating is temporarily inscribed by compressing the optical fiber between a flat plate and the proposed laminated plate. In turn, the new lamina...

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Autores principales: Torres-Gómez, Ismael, Ceballos-Herrera, Daniel E., Salas-Alcantara, Karla M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7248748/
https://www.ncbi.nlm.nih.gov/pubmed/32370088
http://dx.doi.org/10.3390/s20092582
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author Torres-Gómez, Ismael
Ceballos-Herrera, Daniel E.
Salas-Alcantara, Karla M.
author_facet Torres-Gómez, Ismael
Ceballos-Herrera, Daniel E.
Salas-Alcantara, Karla M.
author_sort Torres-Gómez, Ismael
collection PubMed
description This work presents a formation method of mechanically-induced long-period fiber gratings using laminated plates. The mechanically-induced long-period fiber grating is temporarily inscribed by compressing the optical fiber between a flat plate and the proposed laminated plate. In turn, the new laminated plate consists of a parallel assembling of single-edged utility blades. We present the experimental characterization of mechanically-induced long-period fiber gratings while employing three laminated plates with a period of 480 ± 20 µm and low duty cycles. These mechanically-induced long-period fiber gratings display a leading rejection band (>15 dB) with a couple of shallow rejection bands (<2 dB) in the range of 1100–1700 nm. This spectral behavior is due to the new mechanical fabrication process that is based on laminated plates that we have proposed, which consists of piling multiple blades with trapezoidal edges that are polished with different levels to obtain different duty-cycles. With the proposed method, we can obtain values of duty-cycles around 10%, much lower than those obtained using traditional methods. Additionally, with this new method, the required mechanical pressure to form the grating is remarkably reduced, which minimizes the probability of the optical fiber failure in the mechanically-induced long-period fiber gratings (MI-LPFGs). Moreover, the proposed mechanically-induced long-period fiber gratings with a single rejection band open the feasibility to implement coarse wavelength division multiplexing systems that are based on long-period fiber gratings.
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spelling pubmed-72487482020-08-13 Mechanically-Induced Long-Period Fiber Gratings Using Laminated Plates Torres-Gómez, Ismael Ceballos-Herrera, Daniel E. Salas-Alcantara, Karla M. Sensors (Basel) Article This work presents a formation method of mechanically-induced long-period fiber gratings using laminated plates. The mechanically-induced long-period fiber grating is temporarily inscribed by compressing the optical fiber between a flat plate and the proposed laminated plate. In turn, the new laminated plate consists of a parallel assembling of single-edged utility blades. We present the experimental characterization of mechanically-induced long-period fiber gratings while employing three laminated plates with a period of 480 ± 20 µm and low duty cycles. These mechanically-induced long-period fiber gratings display a leading rejection band (>15 dB) with a couple of shallow rejection bands (<2 dB) in the range of 1100–1700 nm. This spectral behavior is due to the new mechanical fabrication process that is based on laminated plates that we have proposed, which consists of piling multiple blades with trapezoidal edges that are polished with different levels to obtain different duty-cycles. With the proposed method, we can obtain values of duty-cycles around 10%, much lower than those obtained using traditional methods. Additionally, with this new method, the required mechanical pressure to form the grating is remarkably reduced, which minimizes the probability of the optical fiber failure in the mechanically-induced long-period fiber gratings (MI-LPFGs). Moreover, the proposed mechanically-induced long-period fiber gratings with a single rejection band open the feasibility to implement coarse wavelength division multiplexing systems that are based on long-period fiber gratings. MDPI 2020-05-01 /pmc/articles/PMC7248748/ /pubmed/32370088 http://dx.doi.org/10.3390/s20092582 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Torres-Gómez, Ismael
Ceballos-Herrera, Daniel E.
Salas-Alcantara, Karla M.
Mechanically-Induced Long-Period Fiber Gratings Using Laminated Plates
title Mechanically-Induced Long-Period Fiber Gratings Using Laminated Plates
title_full Mechanically-Induced Long-Period Fiber Gratings Using Laminated Plates
title_fullStr Mechanically-Induced Long-Period Fiber Gratings Using Laminated Plates
title_full_unstemmed Mechanically-Induced Long-Period Fiber Gratings Using Laminated Plates
title_short Mechanically-Induced Long-Period Fiber Gratings Using Laminated Plates
title_sort mechanically-induced long-period fiber gratings using laminated plates
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7248748/
https://www.ncbi.nlm.nih.gov/pubmed/32370088
http://dx.doi.org/10.3390/s20092582
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