Author, as appears in the article.: Xavier Mateos; Pavel Loiko; Josep Maria Serres; Haohai Yu; Junhai Liu; Konstantin Yumashev; Uwe Griebner; Valentin Petrov; Magdalena Aguiló; Francesc Díaz
Department: Química Física i Inorgànica
URV's Author/s: MATEOS FERRÉ, XAVIER; Pavel Loiko; Josep Maria Serres; Haohai Yu; Junhai Liu; Konstantin Yumashev; Uwe Griebner; Valentin Petrov; AGUILÓ DÍAZ, MAGDALENA; DÍAZ GONZÁLEZ, FRANCISCO MANUEL
Keywords: thermal lensing Microchip laser Diode-pumped lasers
Abstract: Thermal lensing is studied in monoclinic Yb:Ca4YO(BO3)3 (Yb: YCOB) oxoborate crystals cut along the optical indicatrix axes. For all orientations, the thermal lens is positive. In the Z-cut crystal, the sensitivity factors of the thermal lens are MZX ¼ 2:4 and MZY ¼ 2:8 m1=W (for EkX), and the astigmatism degree is as low as S=M ¼ 14%.The positive thermal lens in Yb:YCOB is related to the large thermal expansion and strong photoelastic effect. Microchip lasers are realized with 3-mm-long X, Y, and Z-cut 15 at.% Yb:YCOB crystals. With a Z-cut crystal, maximum output power of 8.35 W is achieved at ¿1040 nm with slope efficiency of 70%. Using various crystal cuts and output coupler transmissions, multiwatt emission in the spectral range of 1033¿1091 nm is demonstrated.
Research group: Física i Cristal·lografia de Nanomaterials Física i Cristal.lografia de Materials
Thematic Areas: Chemistry Química Química
licence for use: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 1943-0655
Author identifier: 0000-0003-1940-1990; ; ; ; ; ; ; ; 0000-0001-6130-9579; 0000-0003-4581-4967
Record's date: 2017-06-12
Journal volume: 8
Papper version: info:eu-repo/semantics/publishedVersion
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Entity: Universitat Rovira i Virgili
Journal publication year: 2016
First page: 1943-0655
Publication Type: Article Artículo Article
Repositori URV