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Prospects of monoclinic Yb:KLu(WO4)(2) crystal for multi-watt microchip lasers

  • Identification data

    Identifier: imarina:9242049
    Authors:
    Serres, Josep MariaLoiko, PavelMateos, XavierYumashev, KonstantinKuleshov, NikolaiPetrov, ValentinGriebner, UweAguilo, MagdalenaDiaz, Francesc
    Abstract:
    The concept of Yb-doped double tungstate microchip lasers is verified and scaled to the multi-watt power level. The active element is a 2.6 mm-thick Yb:KLuW crystal cut along the N-g optical indicatrix axis. Maximum continuous-wave output power of 4.4 W is extracted at 1049 nm with a slope efficiency of 65% and an optical-to-optical efficiency of 44% with respect to the absorbed pump power. The laser emission is linearly polarized and the intensity profile is characterized by a near-circular TEM00 mode with M-x,y(2) < 1.1. Due to low intracavity losses of the microchip laser, laser operation at wavelengths as long as 1063 nm is achieved. The mechanism of the thermal mode stabilization in the microchip cavity is confirmed. At very low resonator losses polarization-switching between E parallel to N-m and N-p oscillating states is observed and explained on the basis of spectroscopic and thermal lens characteristics. (C)2015 Optical Society of America
  • Others:

    Author, as appears in the article.: Serres, Josep Maria; Loiko, Pavel; Mateos, Xavier; Yumashev, Konstantin; Kuleshov, Nikolai; Petrov, Valentin; Griebner, Uwe; Aguilo, Magdalena; Diaz, Francesc
    Department: Química Física i Inorgànica
    URV's Author/s: Aguiló Díaz, Magdalena / Díaz González, Francisco Manuel / Mateos Ferré, Xavier / Serres Serres, Josep Maria
    Keywords: Ytterbium Ybcagdalo4 laser Thermal-lens Power Operation Klu(wo4)(2) Growth Double tungstate lasers Diode Cut Continuous-wave
    Abstract: The concept of Yb-doped double tungstate microchip lasers is verified and scaled to the multi-watt power level. The active element is a 2.6 mm-thick Yb:KLuW crystal cut along the N-g optical indicatrix axis. Maximum continuous-wave output power of 4.4 W is extracted at 1049 nm with a slope efficiency of 65% and an optical-to-optical efficiency of 44% with respect to the absorbed pump power. The laser emission is linearly polarized and the intensity profile is characterized by a near-circular TEM00 mode with M-x,y(2) < 1.1. Due to low intracavity losses of the microchip laser, laser operation at wavelengths as long as 1063 nm is achieved. The mechanism of the thermal mode stabilization in the microchip cavity is confirmed. At very low resonator losses polarization-switching between E parallel to N-m and N-p oscillating states is observed and explained on the basis of spectroscopic and thermal lens characteristics. (C)2015 Optical Society of America
    Thematic Areas: Química Optics Materials science, multidisciplinary Materiais Interdisciplinar Engenharias iv Engenharias iii Engenharias ii Electronic, optical and magnetic materials Biotecnología Astronomia / física
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: josepmaria.serres@urv.cat magdalena.aguilo@urv.cat xavier.mateos@urv.cat f.diaz@urv.cat
    Author identifier: 0000-0002-4299-538X 0000-0001-6130-9579 0000-0003-1940-1990 0000-0003-4581-4967
    Record's date: 2024-10-19
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: https://opg.optica.org/ome/fulltext.cfm?uri=ome-5-3-661&id=312513
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Optical Materials Express. 5 (3): 661-667
    APA: Serres, Josep Maria; Loiko, Pavel; Mateos, Xavier; Yumashev, Konstantin; Kuleshov, Nikolai; Petrov, Valentin; Griebner, Uwe; Aguilo, Magdalena; Diaz, (2015). Prospects of monoclinic Yb:KLu(WO4)(2) crystal for multi-watt microchip lasers. Optical Materials Express, 5(3), 661-667. DOI: 10.1364/OME.5.000661
    Article's DOI: 10.1364/OME.5.000661
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2015
    Publication Type: Journal Publications
  • Keywords:

    Electronic, Optical and Magnetic Materials,Materials Science, Multidisciplinary,Optics
    Ytterbium
    Ybcagdalo4 laser
    Thermal-lens
    Power
    Operation
    Klu(wo4)(2)
    Growth
    Double tungstate lasers
    Diode
    Cut
    Continuous-wave
    Química
    Optics
    Materials science, multidisciplinary
    Materiais
    Interdisciplinar
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Electronic, optical and magnetic materials
    Biotecnología
    Astronomia / física
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