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Optimized chaotic Brillouin dynamic grating with filtered optical feedback

Chaotic Brillouin dynamic gratings (BDGs) have special advantages such as the creation of single, permanent and localized BDG. However, the periodic signals induced by conventional optical feedback (COF) in chaotic semiconductor lasers can lead to the generation of spurious BDGs, which will limit th...

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Autores principales: Zhang, Jianzhong, Li, Zhuping, Wu, Yuan, Zhang, Mingjiang, Liu, Yi, Li, Mengwen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5770413/
https://www.ncbi.nlm.nih.gov/pubmed/29339759
http://dx.doi.org/10.1038/s41598-018-19180-w
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author Zhang, Jianzhong
Li, Zhuping
Wu, Yuan
Zhang, Mingjiang
Liu, Yi
Li, Mengwen
author_facet Zhang, Jianzhong
Li, Zhuping
Wu, Yuan
Zhang, Mingjiang
Liu, Yi
Li, Mengwen
author_sort Zhang, Jianzhong
collection PubMed
description Chaotic Brillouin dynamic gratings (BDGs) have special advantages such as the creation of single, permanent and localized BDG. However, the periodic signals induced by conventional optical feedback (COF) in chaotic semiconductor lasers can lead to the generation of spurious BDGs, which will limit the application of chaotic BDGs. In this paper, filtered optical feedback (FOF) is proposed to eliminate spurious BDGs. By controlling the spectral width of the optical filter and its detuning from the laser frequency, semiconductor lasers with FOF operate in the suppression region of the time-delay signature, and chaotic outputs serving as pump waves are then utilized to generate the chaotic BDG in a polarization maintaining fiber. Through comparative analysis of the COF and FOF schemes, it has been demonstrated that spurious BDGs are effectively eliminated and that the reflection characterization of the chaotic BDG is improved. The influence of FOF on the reflection and gain spectra of the chaotic BDG is analyzed as well.
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spelling pubmed-57704132018-01-26 Optimized chaotic Brillouin dynamic grating with filtered optical feedback Zhang, Jianzhong Li, Zhuping Wu, Yuan Zhang, Mingjiang Liu, Yi Li, Mengwen Sci Rep Article Chaotic Brillouin dynamic gratings (BDGs) have special advantages such as the creation of single, permanent and localized BDG. However, the periodic signals induced by conventional optical feedback (COF) in chaotic semiconductor lasers can lead to the generation of spurious BDGs, which will limit the application of chaotic BDGs. In this paper, filtered optical feedback (FOF) is proposed to eliminate spurious BDGs. By controlling the spectral width of the optical filter and its detuning from the laser frequency, semiconductor lasers with FOF operate in the suppression region of the time-delay signature, and chaotic outputs serving as pump waves are then utilized to generate the chaotic BDG in a polarization maintaining fiber. Through comparative analysis of the COF and FOF schemes, it has been demonstrated that spurious BDGs are effectively eliminated and that the reflection characterization of the chaotic BDG is improved. The influence of FOF on the reflection and gain spectra of the chaotic BDG is analyzed as well. Nature Publishing Group UK 2018-01-16 /pmc/articles/PMC5770413/ /pubmed/29339759 http://dx.doi.org/10.1038/s41598-018-19180-w Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Zhang, Jianzhong
Li, Zhuping
Wu, Yuan
Zhang, Mingjiang
Liu, Yi
Li, Mengwen
Optimized chaotic Brillouin dynamic grating with filtered optical feedback
title Optimized chaotic Brillouin dynamic grating with filtered optical feedback
title_full Optimized chaotic Brillouin dynamic grating with filtered optical feedback
title_fullStr Optimized chaotic Brillouin dynamic grating with filtered optical feedback
title_full_unstemmed Optimized chaotic Brillouin dynamic grating with filtered optical feedback
title_short Optimized chaotic Brillouin dynamic grating with filtered optical feedback
title_sort optimized chaotic brillouin dynamic grating with filtered optical feedback
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5770413/
https://www.ncbi.nlm.nih.gov/pubmed/29339759
http://dx.doi.org/10.1038/s41598-018-19180-w
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