Articles producció científica> Química Física i Inorgànica

Femtoscond-laser-written hexagonal cladding waveguide in Tm:KLu(WO4)2: ¿-Raman study and laser operation.

  • Dades identificatives

    Identificador: PC:3247
    Handle: https://hdl.handle.net/20.500.11797/PC3247
    Autors:
    Mateos, X.Kifle, E.Vázquez de AldanaRódenas, J.R.Loiko, P.Choi, S. Y.Rotermund, F.Griebner, U.Petrov, V.Aguiló, M.Díaz, F.
    Resum:
    We report on the fabrication, ¿-Raman characterization, and continuous-wave laser operation of a channel waveguide with a hexagonal optical-lattice-like cladding fabricated in monoclinic Tm:KLu(WO4)2 crystal by femtosecond direct laser writing. ¿-Raman spectroscopy indicates preservation of the crystalline quality in the core region and an anisotropic residual stress field. When pumped by a Ti:Sapphire laser at 802 nm, the Tm:KLu(WO4)2 buried channel waveguide laser generated 136 mW at 1843.7 nm with a slope efficiency of 34.2% and a threshold as low as 21 mW, which are the record characteristics for femtosecond-laser-written Tm crystalline waveguide lasers. The variation of the output coupling resulted in discrete wavelength tuning of the laser emission from 1785 to 1862 nm. The propagation losses in the waveguide are ~1.2 ± 0.3 dB/cm.

  • Altres:

    Autor segons l'article: Mateos, X. ; Kifle, E.; Vázquez de Aldana; Ródenas, J.R. ; Loiko, P.; Choi, S. Y.; Rotermund, F. ; Griebner, U. ; Petrov, V. ; Aguiló, M. ; Díaz, F.
    Departament: Química Física i Inorgànica
    Autor/s de la URV: MATEOS FERRÉ, XAVIER; Kifle, E.; Vázquez de Aldana; Ródenas, J.R. ; Loiko, P.; Choi, S. Y.; Rotermund, F. ; Griebner, U. ; Petrov, V. ; AGUILÓ DÍAZ, MAGDALENA; DÍAZ GONZÁLEZ, FRANCISCO MANUEL
    Paraules clau: Lasers materials Spectroscopy
    Resum: We report on the fabrication, ¿-Raman characterization, and continuous-wave laser operation of a channel waveguide with a hexagonal optical-lattice-like cladding fabricated in monoclinic Tm:KLu(WO4)2 crystal by femtosecond direct laser writing. ¿-Raman spectroscopy indicates preservation of the crystalline quality in the core region and an anisotropic residual stress field. When pumped by a Ti:Sapphire laser at 802 nm, the Tm:KLu(WO4)2 buried channel waveguide laser generated 136 mW at 1843.7 nm with a slope efficiency of 34.2% and a threshold as low as 21 mW, which are the record characteristics for femtosecond-laser-written Tm crystalline waveguide lasers. The variation of the output coupling resulted in discrete wavelength tuning of the laser emission from 1785 to 1862 nm. The propagation losses in the waveguide are ~1.2 ± 0.3 dB/cm.
    Grup de recerca: Física i Cristal.lografia de Materials Física i Cristal·lografia de Nanomaterials
    Àrees temàtiques: Química Química Chemistry
    Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 2159-3930
    Identificador de l'autor: 0000-0003-1940-1990; ; ; ; ; ; ; ; ; 0000-0001-6130-9579; 0000-0003-4581-4967
    Data d'alta del registre: 2018-05-29
    Volum de revista: 7
    Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
    Programa de finançament: plan; Retos; MAT2016-75716-C2-1-R (AEI/FEDER,UE) plan; Retos; MAT2013-47395-C4-4- R plan; Retos; TEC 2014-55948-R, plan; FIS2013-44174-P plan; FIS2015-71933-REDT altres; UIC016, SA046U16 altres; Grupos consolidados; 2014SGR1358
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2017
    Pàgina inicial: 4258
    Tipus de publicació: Article Artículo Article

  • Paraules clau:

    Làsers
    Espectroscòpia de làser
    Lasers materials
    Spectroscopy
    Química
    Química
    Chemistry
    2159-3930

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