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PbS Quantum Dots Saturable Absorber for Dual-Wavelength Solitons Generation
PbS quantum dots (QDs), a representative zero-dimensional material, have attracted great interest due to their unique optical, electronic, and chemical characteristics. Compared to one- and two-dimensional materials, PbS QDs possess strong absorption and an adjustable bandgap, which are particularly...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8539987/ https://www.ncbi.nlm.nih.gov/pubmed/34685000 http://dx.doi.org/10.3390/nano11102561 |
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author | Yun, Ling Zhao, Wei |
author_facet | Yun, Ling Zhao, Wei |
author_sort | Yun, Ling |
collection | PubMed |
description | PbS quantum dots (QDs), a representative zero-dimensional material, have attracted great interest due to their unique optical, electronic, and chemical characteristics. Compared to one- and two-dimensional materials, PbS QDs possess strong absorption and an adjustable bandgap, which are particularly fascinating in near-infrared applications. Here, fiber-based PbS QDs as a saturable absorber (SA) are studied for dual-wavelength ultrafast pulses generation for the first time to our knowledge. By introducing PbS QDs SA into an erbium-doped fiber laser, the laser can simultaneously generate dual-wavelength conventional solitons with central wavelengths of 1532 and 1559 nm and 3 dB bandwidths of 2.8 and 2.5 nm, respectively. The results show that PbS QDs as broadband SAs have potential application prospects for the generation of ultrafast lasers. |
format | Online Article Text |
id | pubmed-8539987 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-85399872021-10-24 PbS Quantum Dots Saturable Absorber for Dual-Wavelength Solitons Generation Yun, Ling Zhao, Wei Nanomaterials (Basel) Article PbS quantum dots (QDs), a representative zero-dimensional material, have attracted great interest due to their unique optical, electronic, and chemical characteristics. Compared to one- and two-dimensional materials, PbS QDs possess strong absorption and an adjustable bandgap, which are particularly fascinating in near-infrared applications. Here, fiber-based PbS QDs as a saturable absorber (SA) are studied for dual-wavelength ultrafast pulses generation for the first time to our knowledge. By introducing PbS QDs SA into an erbium-doped fiber laser, the laser can simultaneously generate dual-wavelength conventional solitons with central wavelengths of 1532 and 1559 nm and 3 dB bandwidths of 2.8 and 2.5 nm, respectively. The results show that PbS QDs as broadband SAs have potential application prospects for the generation of ultrafast lasers. MDPI 2021-09-29 /pmc/articles/PMC8539987/ /pubmed/34685000 http://dx.doi.org/10.3390/nano11102561 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Yun, Ling Zhao, Wei PbS Quantum Dots Saturable Absorber for Dual-Wavelength Solitons Generation |
title | PbS Quantum Dots Saturable Absorber for Dual-Wavelength Solitons Generation |
title_full | PbS Quantum Dots Saturable Absorber for Dual-Wavelength Solitons Generation |
title_fullStr | PbS Quantum Dots Saturable Absorber for Dual-Wavelength Solitons Generation |
title_full_unstemmed | PbS Quantum Dots Saturable Absorber for Dual-Wavelength Solitons Generation |
title_short | PbS Quantum Dots Saturable Absorber for Dual-Wavelength Solitons Generation |
title_sort | pbs quantum dots saturable absorber for dual-wavelength solitons generation |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8539987/ https://www.ncbi.nlm.nih.gov/pubmed/34685000 http://dx.doi.org/10.3390/nano11102561 |
work_keys_str_mv | AT yunling pbsquantumdotssaturableabsorberfordualwavelengthsolitonsgeneration AT zhaowei pbsquantumdotssaturableabsorberfordualwavelengthsolitonsgeneration |