Highly efficient dual-wavelength mid-infrared CW Laser in diode end-pumped Er:SrF(2) single crystals

The spectral properties and laser performance of Er:SrF(2) single crystals were investigated and compared with Er:CaF(2). Er:SrF(2) crystals have larger absorption cross-sections at the pumping wavelength, larger mid-infrared stimulated emission cross-sections and much longer fluorescence lifetimes...

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Autores principales: Ma, Weiwei, Qian, Xiaobo, Wang, Jingya, Liu, Jingjing, Fan, Xiuwei, Liu, Jie, Su, Liangbi, Xu, Jun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5095644/
https://www.ncbi.nlm.nih.gov/pubmed/27811994
http://dx.doi.org/10.1038/srep36635
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author Ma, Weiwei
Qian, Xiaobo
Wang, Jingya
Liu, Jingjing
Fan, Xiuwei
Liu, Jie
Su, Liangbi
Xu, Jun
author_facet Ma, Weiwei
Qian, Xiaobo
Wang, Jingya
Liu, Jingjing
Fan, Xiuwei
Liu, Jie
Su, Liangbi
Xu, Jun
author_sort Ma, Weiwei
collection PubMed
description The spectral properties and laser performance of Er:SrF(2) single crystals were investigated and compared with Er:CaF(2). Er:SrF(2) crystals have larger absorption cross-sections at the pumping wavelength, larger mid-infrared stimulated emission cross-sections and much longer fluorescence lifetimes of the upper laser level (Er(3+):(4)I(11/2) level) than those of Er:CaF(2) crystals. Dual-wavelength continuous-wave (CW) lasers around 2.8 μm were demonstrated in both 4at.% and 10at.% Er:SrF(2) single crystals under 972 nm laser diode (LD) end pumping. The laser wavelengths are 2789.3 nm and 2791.8 nm in the former, and 2786.4 nm and 2790.7 nm in the latter, respectively. The best laser performance has been demonstrated in lightly doped 4at.% Er:SrF(2) with a low threshold of 0.100 W, a high slope efficiency of 22.0%, an maximum output power of 0.483 W.
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spelling pubmed-50956442016-11-10 Highly efficient dual-wavelength mid-infrared CW Laser in diode end-pumped Er:SrF(2) single crystals Ma, Weiwei Qian, Xiaobo Wang, Jingya Liu, Jingjing Fan, Xiuwei Liu, Jie Su, Liangbi Xu, Jun Sci Rep Article The spectral properties and laser performance of Er:SrF(2) single crystals were investigated and compared with Er:CaF(2). Er:SrF(2) crystals have larger absorption cross-sections at the pumping wavelength, larger mid-infrared stimulated emission cross-sections and much longer fluorescence lifetimes of the upper laser level (Er(3+):(4)I(11/2) level) than those of Er:CaF(2) crystals. Dual-wavelength continuous-wave (CW) lasers around 2.8 μm were demonstrated in both 4at.% and 10at.% Er:SrF(2) single crystals under 972 nm laser diode (LD) end pumping. The laser wavelengths are 2789.3 nm and 2791.8 nm in the former, and 2786.4 nm and 2790.7 nm in the latter, respectively. The best laser performance has been demonstrated in lightly doped 4at.% Er:SrF(2) with a low threshold of 0.100 W, a high slope efficiency of 22.0%, an maximum output power of 0.483 W. Nature Publishing Group 2016-11-04 /pmc/articles/PMC5095644/ /pubmed/27811994 http://dx.doi.org/10.1038/srep36635 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, Weiwei
Qian, Xiaobo
Wang, Jingya
Liu, Jingjing
Fan, Xiuwei
Liu, Jie
Su, Liangbi
Xu, Jun
Highly efficient dual-wavelength mid-infrared CW Laser in diode end-pumped Er:SrF(2) single crystals
title Highly efficient dual-wavelength mid-infrared CW Laser in diode end-pumped Er:SrF(2) single crystals
title_full Highly efficient dual-wavelength mid-infrared CW Laser in diode end-pumped Er:SrF(2) single crystals
title_fullStr Highly efficient dual-wavelength mid-infrared CW Laser in diode end-pumped Er:SrF(2) single crystals
title_full_unstemmed Highly efficient dual-wavelength mid-infrared CW Laser in diode end-pumped Er:SrF(2) single crystals
title_short Highly efficient dual-wavelength mid-infrared CW Laser in diode end-pumped Er:SrF(2) single crystals
title_sort highly efficient dual-wavelength mid-infrared cw laser in diode end-pumped er:srf(2) single crystals
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5095644/
https://www.ncbi.nlm.nih.gov/pubmed/27811994
http://dx.doi.org/10.1038/srep36635
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