Author, as appears in the article.: Mateos, X. ; Kifle, E; Loiko, P; Rodríguez, J. ; Ródenas, A. ; Griebner, U.; Petrov, V.; Aguiló, M. ; Díaz, F.
Department: Química Física i Inorgànica
URV's Author/s: MATEOS FERRÉ, XAVIER; Kifle, E; Loiko, P; Rodríguez, J. ; Ródenas, A. ; Griebner, U.; Petrov, V.; AGUILÓ DÍAZ, MAGDALENA; DÍAZ GONZÁLEZ, FRANCISCO MANUEL
Keywords: Laser materials Spectroscopy Waveguides
Abstract: We report on the fabrication, ¿-Raman characterization, and continuous-wave laser operation of a channel waveguide with a hexagonal optical-lattice-like cladding fabricated in monoclinic Tm:KLu(WO4)2 crystal by femtosecond direct laser writing. ¿-Raman spectroscopy indicates preservation of the crystalline quality in the core region and an anisotropic residual stress field. When pumped by a Ti:Sapphire laser at 802 nm, the
Tm:KLu(WO4)2 buried channel waveguide laser generated 136 mW at 1843.7 nm with a slope efficiency of 34.2% and a threshold as low as 21 mW, which are the record characteristics for femtosecond-laser-written Tm crystalline waveguide lasers. The variation of the output coupling resulted in discrete wavelength tuning of the laser emission from 1785 to 1862 nm. The propagation losses in the waveguide are ~1.2 ± 0.3 dB/cm.
Research group: Física i Cristal.lografia de Materials Física i Cristal·lografia de Nanomaterials
Thematic Areas: Química Química Chemistry
licence for use: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 2159-3930
Author identifier: 0000-0003-1940-1990; ; ; ; ; ; ; 0000-0001-6130-9579; 0000-0003-4581-4967
Record's date: 2018-02-22
Last page: 4268
Journal volume: 7
Papper version: info:eu-repo/semantics/publishedVersion
Funding program: altres; AGAUR Grants; 2016FI_B00844 altres; AGAUR Grants; 2017FI_B100158 altres; Icrea Academia; 2010ICREA-02 european; Marie Sk¿odowska-Curie; 657630 european; Marie Sk¿odowska-Curie; 747055 altres; ITMO Post-Doctoral Fellowship; 074-U01
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Entity: Universitat Rovira i Virgili
Journal publication year: 2017
First page: 4258
Publication Type: Article Artículo Article
Repositori URV