Author, as appears in the article.: Kifle E; Loiko P; Romero C; Vázquez de Aldana J; Ródenas A; Jambunathan V; Zakharov V; Veniaminov A; Lucianetti A; Mocek T; Aguiló M; Díaz F; Griebner U; Petrov V; Mateos X

Department: Química Física i Inorgànica

URV's Author/s: , / Aguiló Díaz, Magdalena / Mateos Ferré, Xavier

Keywords: ¿-raman Waveguide lasers Laser crystal

Abstract: © 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. : We report on the first erbium (Er3+) doped double tungstate waveguide laser. As a gain material, we studied a monoclinic Er3+:KLu(WO4)2 crystal. A depressed-index buried channel waveguide formed by a 60 µm-diameter circular cladding was fabricated by 3D femtosecond direct laser writing. The waveguide was characterized by confocal laser microscopy, µ-Raman and µ-luminescence mapping, confirming that the crystallinity of the core is preserved. The waveguide laser, diode pumped at 981 nm, generated 8.9 mW at 1533.6 nm with a slope efficiency of 20.9% in the continuous-wave regime. The laser polarization was linear (E || Nm). The laser threshold was at 93 mW of absorbed pump power.

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: 10944087

Author's mail: f.diaz@urv.cat xavier.mateos@urv.cat magdalena.aguilo@urv.cat

Author identifier: 0000-0003-4581-4967 0000-0003-1940-1990 0000-0001-6130-9579

Record's date: 2023-10-14

Papper version: info:eu-repo/semantics/publishedVersion

Link to the original source: https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-26-23-30826&id=401109

Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/

Papper original source: Optics Express. 26 (23): 30826-30836

APA: Kifle E; Loiko P; Romero C; Vázquez de Aldana J; Ródenas A; Jambunathan V; Zakharov V; Veniaminov A; Lucianetti A; Mocek T; Aguiló M; Díaz F; Griebner (2018). Fs-laser-written erbium-doped double tungstate waveguide laser. Optics Express, 26(23), 30826-30836. DOI: 10.1364/OE.26.030826

Article's DOI: 10.1364/OE.26.030826

Entity: Universitat Rovira i Virgili

Journal publication year: 2018

Publication Type: Journal Publications