Articles producció científicaQuímica 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 Aldana; Ródenas, 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:

    Link to the original source: https://www.osapublishing.org/ome/abstract.cfm?uri=ome-7-12-4258
    Article's DOI: 10.1364/OME.7.004258
    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
    Journal publication year: 2017
    Entity: Universitat Rovira i Virgili
    Paper version: info:eu-repo/semantics/publishedVersion
    Record's date: 2018-05-29
    First page: 4258
    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
    Department: Química Física i Inorgànica
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Publication Type: Article
    ISSN: 2159-3930
    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.
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Journal volume: 7
    Research group: Física i Cristal.lografia de Materials, Física i Cristal·lografia de Nanomaterials
    Thematic Areas: Chemistry