Articles producció científica> Química Física i Inorgànica

Mirrorless buried waveguide laser in monoclinic double tungstates fabricated by a novel combination of ion milling and liquid phase epitaxy

  • Identification data

    Identifier: imarina:6386464
    Authors:
    Bolanos W., Carvajal J., Mateos X., Murugan G., Subramanian A., Wilkinson J., Cantelar E., Jaque D., Lifante G., Aguiló M., Díaz F.
    Abstract:
    Buried channel waveguides were fabricated by liquid phase epitaxial growth of a lattice-matched KY0.58Gd0.22Lu0.17Tm 0.03(WO4)2 film on a microstructured KY(WO 4)2 substrate. Channels were transferred to the substrates by standard photolithography and Ar-ion milling. The bottom and sidewalls of the milled channels were smooth enough (rms roughness = 70 nm and 20 nm, respectively) to favour the epitaxial growth of the active layer without defects at the boundary of substrate/epitaxial layer. The refractive index contrast was sufficient to enable light confinement and guided modes with low scattering losses were observed at wavelengths between 1440 nm and 1640 nm. CW laser operation at 1840 nm at room temperature was observed with feedback provided only by Fresnel reflection at the end faces, with slope efficiencies of 4% and 9% for TE and TM polarizations, respectively. © 2010 Optical Society of America.
  • Others:

    Author, as appears in the article.: Bolanos W., Carvajal J., Mateos X., Murugan G., Subramanian A., Wilkinson J., Cantelar E., Jaque D., Lifante G., Aguiló M., Díaz F.
    Department: Química Física i Inorgànica
    URV's Author/s: Aguiló Díaz, Magdalena / BOLAÑOS RODRÍGUEZ, WESTERN LICKE / Carvajal Martí, Joan Josep / Díaz Castrillón, Fernanda / Díaz González, Francisco Manuel / Mateos Ferré, Xavier
    Abstract: Buried channel waveguides were fabricated by liquid phase epitaxial growth of a lattice-matched KY0.58Gd0.22Lu0.17Tm 0.03(WO4)2 film on a microstructured KY(WO 4)2 substrate. Channels were transferred to the substrates by standard photolithography and Ar-ion milling. The bottom and sidewalls of the milled channels were smooth enough (rms roughness = 70 nm and 20 nm, respectively) to favour the epitaxial growth of the active layer without defects at the boundary of substrate/epitaxial layer. The refractive index contrast was sufficient to enable light confinement and guided modes with low scattering losses were observed at wavelengths between 1440 nm and 1640 nm. CW laser operation at 1840 nm at room temperature was observed with feedback provided only by Fresnel reflection at the end faces, with slope efficiencies of 4% and 9% for TE and TM polarizations, respectively. © 2010 Optical Society of America.
    Thematic Areas: Química Optics Odontología Medicina iii Medicina ii Materiais Matemática / probabilidade e estatística Interdisciplinar Engenharias iv Engenharias iii Engenharias ii Ciências biológicas i Ciências agrárias i Ciência da computação Biotecnología Atomic and molecular physics, and optics Astronomia / física
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 1094-4087
    Author's mail: fernanda.diaz@estudiants.urv.cat joanjosep.carvajal@urv.cat magdalena.aguilo@urv.cat xavier.mateos@urv.cat f.diaz@urv.cat
    Author identifier: 0000-0002-4389-7298 0000-0001-6130-9579 0000-0003-1940-1990 0000-0003-4581-4967
    Last page: 26945
    Record's date: 2024-09-21
    Journal volume: 18
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-18-26-26937&id=208691
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Optics Express. 18 (26): 26937-26945
    APA: Bolanos W., Carvajal J., Mateos X., Murugan G., Subramanian A., Wilkinson J., Cantelar E., Jaque D., Lifante G., Aguiló M., Díaz F. (2010). Mirrorless buried waveguide laser in monoclinic double tungstates fabricated by a novel combination of ion milling and liquid phase epitaxy. Optics Express, 18(26), 26937-26945. DOI: 10.1364/OE.18.026937
    Article's DOI: 10.1364/OE.18.026937
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2010
    First page: 26937
    Publication Type: Journal Publications
  • Keywords:

    Atomic and Molecular Physics, and Optics,Optics
    Química
    Optics
    Odontología
    Medicina iii
    Medicina ii
    Materiais
    Matemática / probabilidade e estatística
    Interdisciplinar
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Ciências biológicas i
    Ciências agrárias i
    Ciência da computação
    Biotecnología
    Atomic and molecular physics, and optics
    Astronomia / física
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