Articles producció científica> Química Física i Inorgànica

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

  • Identification data

    Identifier: PC:3247
    Handle: https://hdl.handle.net/20.500.11797/PC3247
    Authors:
    Mateos, X.Kifle, E.Vázquez de AldanaRódenas, J.R.Loiko, P.Choi, S. Y.Rotermund, F.Griebner, U.Petrov, V.Aguiló, M.Díaz, F.
    Abstract:
    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.

  • Others:

    Author, as appears in the 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.
    Department: Química Física i Inorgànica
    URV's Author/s: 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
    Keywords: Lasers materials Spectroscopy
    Abstract: 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.
    Research group: Física i Cristal.lografia de Materials Física i Cristal·lografia de Nanomaterials
    Thematic Areas: Química Química Chemistry
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 2159-3930
    Author identifier: 0000-0003-1940-1990; ; ; ; ; ; ; ; ; 0000-0001-6130-9579; 0000-0003-4581-4967
    Record's date: 2018-05-29
    Journal volume: 7
    Papper version: info:eu-repo/semantics/publishedVersion
    Funding program: 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
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2017
    First page: 4258
    Publication Type: Article Artículo Article

  • Keywords:

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

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