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All-optical fiber optic coherent amplifier
A fiber optic-based all-optical amplifier is designed by using the coherent perfect absorption phenomenon. For this purpose, we use a deposited chromium thin layer as an absorbent material on the cross-section of a PM fiber. By placing another fiber in front of the deposited one, we show that by con...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6194080/ https://www.ncbi.nlm.nih.gov/pubmed/30337592 http://dx.doi.org/10.1038/s41598-018-33426-7 |
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author | Goodarzi, A. Ghanaatshoar, M. Mozafari, M. |
author_facet | Goodarzi, A. Ghanaatshoar, M. Mozafari, M. |
author_sort | Goodarzi, A. |
collection | PubMed |
description | A fiber optic-based all-optical amplifier is designed by using the coherent perfect absorption phenomenon. For this purpose, we use a deposited chromium thin layer as an absorbent material on the cross-section of a PM fiber. By placing another fiber in front of the deposited one, we show that by controlling the relative phase between the two counter-propagating beams, total absorbance can be controlled. In the interaction of two beams with unequal intensities, absorption control can be associated with amplification for the weaker beam. By using this mechanism, the effect of an external phase-shifting parameter can be amplified. Furthermore, it is possible to amplify a small signal riding on a CW background through this all-optical procedure. |
format | Online Article Text |
id | pubmed-6194080 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-61940802018-10-24 All-optical fiber optic coherent amplifier Goodarzi, A. Ghanaatshoar, M. Mozafari, M. Sci Rep Article A fiber optic-based all-optical amplifier is designed by using the coherent perfect absorption phenomenon. For this purpose, we use a deposited chromium thin layer as an absorbent material on the cross-section of a PM fiber. By placing another fiber in front of the deposited one, we show that by controlling the relative phase between the two counter-propagating beams, total absorbance can be controlled. In the interaction of two beams with unequal intensities, absorption control can be associated with amplification for the weaker beam. By using this mechanism, the effect of an external phase-shifting parameter can be amplified. Furthermore, it is possible to amplify a small signal riding on a CW background through this all-optical procedure. Nature Publishing Group UK 2018-10-18 /pmc/articles/PMC6194080/ /pubmed/30337592 http://dx.doi.org/10.1038/s41598-018-33426-7 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 Goodarzi, A. Ghanaatshoar, M. Mozafari, M. All-optical fiber optic coherent amplifier |
title | All-optical fiber optic coherent amplifier |
title_full | All-optical fiber optic coherent amplifier |
title_fullStr | All-optical fiber optic coherent amplifier |
title_full_unstemmed | All-optical fiber optic coherent amplifier |
title_short | All-optical fiber optic coherent amplifier |
title_sort | all-optical fiber optic coherent amplifier |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6194080/ https://www.ncbi.nlm.nih.gov/pubmed/30337592 http://dx.doi.org/10.1038/s41598-018-33426-7 |
work_keys_str_mv | AT goodarzia allopticalfiberopticcoherentamplifier AT ghanaatshoarm allopticalfiberopticcoherentamplifier AT mozafarim allopticalfiberopticcoherentamplifier |