Author, as appears in the article.: Mateos, Xavier; Lamrini, Samir; Scholle, Karsten; Fuhrberg, Peter; Vatnik, Sergei; Loiko, Pavel; Vedin, Ivan; Aguilo, Magdalena; Diaz, Francesc; Griebner, Uwe
Department: Química Física i Inorgànica
URV's Author/s: Aguiló Díaz, Magdalena / Díaz González, Francisco Manuel / Mateos Ferré, Xavier
Keywords: Thulium Spectroscopy Solid-state lasers Operation Mu-m Lu Laser materials Hoklu(wo4)(2) microchip laser Ho-yag High-power Growth Crystal
Abstract: We report on the first holmium (Ho3+) monoclinic double tungstate thin-disk laser. It is based on a 250 mu m thick 3 at. % Ho:KY(WO4)(2) active layer grown on a (010)-oriented KY(WO4)(2) substrate. When pumped by a Tm-fiber laser at 1960 nm with a single-bounce (single double-pass) pump geometry, the CW Ho:KY(WO4)(2) thin-disk laser generated 1.01 W at 2057 nm, corresponding to a slope efficiency eta of 60% and a laser threshold of only 0.15 W. Implementing a double-bounce (second double-pass) for the pump, the output of this laser was scaled to 1.57 W with eta=55%. The maximum stimulated emission cross section sigma(SE) of the Ho3+ ions in the epitaxial layer reaches 2.5x10(-20) cm(2) at 2056.5 nm for E parallel to N-m. The Ho:KY(WO4)(2) epitaxial structures are promising for multi-watt mode-locked thin-disk lasers at similar to 2.06 mu m. (C) 2017 Optical Society of America
Thematic Areas: Química Optics Odontología Medicina ii Medicina i Materiais Matemática / probabilidade e estatística Interdisciplinar General medicine Engenharias iv Engenharias iii Engenharias ii Ciências ambientais Atomic and molecular physics, and optics Astronomia / física
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: magdalena.aguilo@urv.cat xavier.mateos@urv.cat f.diaz@urv.cat
Author identifier: 0000-0001-6130-9579 0000-0003-1940-1990 0000-0003-4581-4967
Record's date: 2024-10-19
Papper version: info:eu-repo/semantics/acceptedVersion
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Optics Letters. 42 (17): 3490-3493
APA: Mateos, Xavier; Lamrini, Samir; Scholle, Karsten; Fuhrberg, Peter; Vatnik, Sergei; Loiko, Pavel; Vedin, Ivan; Aguilo, Magdalena; Diaz, Francesc; Grieb (2017). Holmium thin-disk laser based on Ho:KY(WO4)(2)/KY(WO4)(2) epitaxy with 60% slope efficiency and simplified pump geometry. Optics Letters, 42(17), 3490-3493. DOI: 10.1364/OL.42.003490
Entity: Universitat Rovira i Virgili
Journal publication year: 2017
Publication Type: Journal Publications
Repositori URV