Autor segons l'article: Loiko, Pavel; Serres, Josep Maria; Mateos, Xavier; Xu, Xiaodong; Xu, Jun; Jambunathan, Venkatesan; Navratil, Petr; Lucianetti, Antonio; Mocek, Tomas; Zhang, Xuzhao; Griebner, Uwe; Petrov, Valentin; Aguilo, Magdalena; Diaz, Francesc; Major, Arkady
Departament: Química Física i Inorgànica
Autor/s de la URV: Aguiló Díaz, Magdalena / Díaz Castrillón, Fernanda / Díaz González, Francisco Manuel / Mateos Ferré, Xavier / Serres Serres, Josep Maria / ZHANG, XIAO
Paraules clau: Affordable and clean energy
Resum: © 2017 Optical Society of America. Multi-watt continuous-wave (CW) operation of tetragonal rare-earth calcium aluminate Yb:CaLnAlO 4 Ln Gd;Y) crystals in plano–plano microchip lasers was demonstrated with an almost quantum-defect-limited slope efficiency. Pumped at 978 nm by an InGaAs laser diode, a 3.4 mm long 8 at. % Yb:CaGdAlO 4 laser generated 7.79 W at 1057–1065 nm with a slope efficiency of ? 84% (with respect to the absorbed pump power). An even higher ? 91% was achieved with a 2.5 mm long 3 at. % Yb:CaYAlO 4 laser, from which 5.06 W were extracted at 1048–1056 nm. Both lasers produced linearly polarized output (?-polarization) with an almost circular diffraction-limited beam (M 2 x,y < 1.1). The output performance of the developed lasers was modeled, yielding an internal loss coefficient as low as 0.004?0.007 cm ?1 . In addition, their spectroscopic properties were revisited.
Àrees temàtiques: 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
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 01469592
Adreça de correu electrònic de l'autor: josepmaria.serres@urv.cat fernanda.diaz@estudiants.urv.cat magdalena.aguilo@urv.cat xavier.mateos@urv.cat f.diaz@urv.cat
Identificador de l'autor: 0000-0002-4299-538X 0000-0001-6130-9579 0000-0003-1940-1990 0000-0003-4581-4967
Data d'alta del registre: 2024-11-16
Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
Enllaç font original: https://www.osapublishing.org/ol/abstract.cfm?uri=ol-42-13-2431
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Optics Letters. 42 (13): 2431-2434
Referència de l'ítem segons les normes APA: Loiko, Pavel; Serres, Josep Maria; Mateos, Xavier; Xu, Xiaodong; Xu, Jun; Jambunathan, Venkatesan; Navratil, Petr; Lucianetti, Antonio; Mocek, Tomas; (2017). Microchip Yb:CaLnAlO4lasers with up to 91% slope efficiency. Optics Letters, 42(13), 2431-2434. DOI: 10.1364/OL.42.002431
DOI de l'article: 10.1364/OL.42.002431
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2017
Tipus de publicació: Journal Publications