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Efficient high repetition rate electro-optic Q-switched laser with an optically active langasite crystal
With an optically active langasite (LGS) crystal as the electro-optic Q-switch, we demonstrate an efficient Q-switched laser with a repetition rate of 200 kHz. Based on the theoretical analysis of the interaction between optical activity and electro-optic property, the optical activity of the crysta...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4962309/ https://www.ncbi.nlm.nih.gov/pubmed/27461819 http://dx.doi.org/10.1038/srep30517 |
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author | Ma, Shihui Yu, Haohai Zhang, Huaijin Han, Xuekun Lu, Qingming Ma, Changqin Boughton, Robert I. Wang, Jiyang |
author_facet | Ma, Shihui Yu, Haohai Zhang, Huaijin Han, Xuekun Lu, Qingming Ma, Changqin Boughton, Robert I. Wang, Jiyang |
author_sort | Ma, Shihui |
collection | PubMed |
description | With an optically active langasite (LGS) crystal as the electro-optic Q-switch, we demonstrate an efficient Q-switched laser with a repetition rate of 200 kHz. Based on the theoretical analysis of the interaction between optical activity and electro-optic property, the optical activity of the crystal has no influence on the birefringence during Q-switching if the quarter wave plate used was rotated to align with the polarization direction. With a Nd:LuVO(4) crystal possessing a large emission cross-section and a short fluorescence lifetime as the gain medium, a stable LGS Q-switched laser was designed with average output power of 4.39 W, corresponding to a slope efficiency of 29.4% and with a minimum pulse width of 5.1 ns. This work represents the highest repetition rate achieved so far in a LGS Q-switched laser and it can provide a practical Q-switched laser with a tunable high repetition rates for many applications, such as materials processing, laser ranging, medicine, military applications, biomacromolecule materials, remote sensing, etc. |
format | Online Article Text |
id | pubmed-4962309 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-49623092016-08-08 Efficient high repetition rate electro-optic Q-switched laser with an optically active langasite crystal Ma, Shihui Yu, Haohai Zhang, Huaijin Han, Xuekun Lu, Qingming Ma, Changqin Boughton, Robert I. Wang, Jiyang Sci Rep Article With an optically active langasite (LGS) crystal as the electro-optic Q-switch, we demonstrate an efficient Q-switched laser with a repetition rate of 200 kHz. Based on the theoretical analysis of the interaction between optical activity and electro-optic property, the optical activity of the crystal has no influence on the birefringence during Q-switching if the quarter wave plate used was rotated to align with the polarization direction. With a Nd:LuVO(4) crystal possessing a large emission cross-section and a short fluorescence lifetime as the gain medium, a stable LGS Q-switched laser was designed with average output power of 4.39 W, corresponding to a slope efficiency of 29.4% and with a minimum pulse width of 5.1 ns. This work represents the highest repetition rate achieved so far in a LGS Q-switched laser and it can provide a practical Q-switched laser with a tunable high repetition rates for many applications, such as materials processing, laser ranging, medicine, military applications, biomacromolecule materials, remote sensing, etc. Nature Publishing Group 2016-07-27 /pmc/articles/PMC4962309/ /pubmed/27461819 http://dx.doi.org/10.1038/srep30517 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Ma, Shihui Yu, Haohai Zhang, Huaijin Han, Xuekun Lu, Qingming Ma, Changqin Boughton, Robert I. Wang, Jiyang Efficient high repetition rate electro-optic Q-switched laser with an optically active langasite crystal |
title | Efficient high repetition rate electro-optic Q-switched laser with an optically active langasite crystal |
title_full | Efficient high repetition rate electro-optic Q-switched laser with an optically active langasite crystal |
title_fullStr | Efficient high repetition rate electro-optic Q-switched laser with an optically active langasite crystal |
title_full_unstemmed | Efficient high repetition rate electro-optic Q-switched laser with an optically active langasite crystal |
title_short | Efficient high repetition rate electro-optic Q-switched laser with an optically active langasite crystal |
title_sort | efficient high repetition rate electro-optic q-switched laser with an optically active langasite crystal |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4962309/ https://www.ncbi.nlm.nih.gov/pubmed/27461819 http://dx.doi.org/10.1038/srep30517 |
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