QUASI-Three-Level Laser Emissions of Neodymium-Doped Disordered Crystal Waveguides

This paper reports on the quasi-three-level continuous wave laser operation based on waveguide structures in neodymium-doped calcium niobium gallium garnet disordered crystal. Laser wavelength selection through the waveguide cross section was observed. Waveguide structures with different cross secti...

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Authors: Vázquez de Aldana, Javier R., Tan, Yang, Chen, Feng, Yu, Haohai, Zhang, Huaijin
Format: article
Status:Published version
Publication Date:2015
Country:España
Institution:Universidad de Salamanca (USAL)
Repository:GREDOS. Repositorio Institucional de la Universidad de Salamanca
OAI Identifier:oai:gredos.usal.es:10366/146589
Online Access:http://hdl.handle.net/10366/146589
Access Level:Open access
Keyword:Waveguide lasers
disorder laser crystals
femtosecond laser inscription
quasi-three-level lasers
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spelling QUASI-Three-Level Laser Emissions of Neodymium-Doped Disordered Crystal WaveguidesVázquez de Aldana, Javier R.Tan, YangChen, FengYu, HaohaiZhang, HuaijinWaveguide lasersdisorder laser crystalsfemtosecond laser inscriptionquasi-three-level lasersThis paper reports on the quasi-three-level continuous wave laser operation based on waveguide structures in neodymium-doped calcium niobium gallium garnet disordered crystal. Laser wavelength selection through the waveguide cross section was observed. Waveguide structures with different cross sections were fabricated by the ultrafast laser inscription, which have propagation losses around 1 dB/cm. With suitable pumping conditions, laser emissions were observed at the low wavelengths of ~930 and ~890 nm. The lasing threshold for the low-wavelength emission was around 50 mW, which is far below the threshold of several watts reported in the bulk laser system. In addition, it was found that the laser generation at the wavelength of ~890 nm has direct relationship with the volume of the waveguide structure. The results suggest advantages of the waveguide platforms over the bulk systems on the low-wavelength laser emission.202120212015info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10366/146589reponame:GREDOS. Repositorio Institucional de la Universidad de Salamancainstname:Universidad de Salamanca (USAL)InglésAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:gredos.usal.es:10366/1465892026-06-07T06:28:51Z
dc.title.none.fl_str_mv QUASI-Three-Level Laser Emissions of Neodymium-Doped Disordered Crystal Waveguides
title QUASI-Three-Level Laser Emissions of Neodymium-Doped Disordered Crystal Waveguides
spellingShingle QUASI-Three-Level Laser Emissions of Neodymium-Doped Disordered Crystal Waveguides
Vázquez de Aldana, Javier R.
Waveguide lasers
disorder laser crystals
femtosecond laser inscription
quasi-three-level lasers
title_short QUASI-Three-Level Laser Emissions of Neodymium-Doped Disordered Crystal Waveguides
title_full QUASI-Three-Level Laser Emissions of Neodymium-Doped Disordered Crystal Waveguides
title_fullStr QUASI-Three-Level Laser Emissions of Neodymium-Doped Disordered Crystal Waveguides
title_full_unstemmed QUASI-Three-Level Laser Emissions of Neodymium-Doped Disordered Crystal Waveguides
title_sort QUASI-Three-Level Laser Emissions of Neodymium-Doped Disordered Crystal Waveguides
dc.creator.none.fl_str_mv Vázquez de Aldana, Javier R.
Tan, Yang
Chen, Feng
Yu, Haohai
Zhang, Huaijin
author Vázquez de Aldana, Javier R.
author_facet Vázquez de Aldana, Javier R.
Tan, Yang
Chen, Feng
Yu, Haohai
Zhang, Huaijin
author_role author
author2 Tan, Yang
Chen, Feng
Yu, Haohai
Zhang, Huaijin
author2_role author
author
author
author
dc.subject.none.fl_str_mv Waveguide lasers
disorder laser crystals
femtosecond laser inscription
quasi-three-level lasers
topic Waveguide lasers
disorder laser crystals
femtosecond laser inscription
quasi-three-level lasers
description This paper reports on the quasi-three-level continuous wave laser operation based on waveguide structures in neodymium-doped calcium niobium gallium garnet disordered crystal. Laser wavelength selection through the waveguide cross section was observed. Waveguide structures with different cross sections were fabricated by the ultrafast laser inscription, which have propagation losses around 1 dB/cm. With suitable pumping conditions, laser emissions were observed at the low wavelengths of ~930 and ~890 nm. The lasing threshold for the low-wavelength emission was around 50 mW, which is far below the threshold of several watts reported in the bulk laser system. In addition, it was found that the laser generation at the wavelength of ~890 nm has direct relationship with the volume of the waveguide structure. The results suggest advantages of the waveguide platforms over the bulk systems on the low-wavelength laser emission.
publishDate 2015
dc.date.none.fl_str_mv 2015
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10366/146589
url http://hdl.handle.net/10366/146589
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:GREDOS. Repositorio Institucional de la Universidad de Salamanca
instname:Universidad de Salamanca (USAL)
instname_str Universidad de Salamanca (USAL)
reponame_str GREDOS. Repositorio Institucional de la Universidad de Salamanca
collection GREDOS. Repositorio Institucional de la Universidad de Salamanca
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301629

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