Author, as appears in the article.: Loiko, P. Serres, J.M. Mateos, X. Yumashev, K. Kuleshov, N. Petrov, V. Griebner, U. Aguiló, M. Díaz, F.
Papper version: info:eu-repo/semantics/publishedVersion
Department: Química Física i Inorgànica
e-ISSN: 1094-4087
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Abstract: A microchip laser is realized on the basis of a monoclinic Tm,Ho-codoped KLu(WO4)2 crystal cut for light propagation along the Ng optical indicatrix axis. This crystal cut provides positive thermal lens with extremely weak astigmatism, S/M = 4%. High sensitivity factors, M = dD/dPabs, of 24.9 and 24.1 m-1/W for the mg- and pg- tangential planes are calculated with respect to the absorbed pump power. Such thermo-optic behavior is responsible for mode stabilization in the plano-plano microchip laser cavity, as well as the demonstrated perfect circular beam profile (M2 < 1.1). Maximum continuous-wave output power of 450 mW is obtained with a slope efficiency of 31%. A set of output couplers is employed to achieve lasing in the spectral range of 2060-2096 nm. The increase of output coupler transmission results in deterioration of the laser performance attributed to the increased up-conversion losses.
Entity: Universitat Rovira i Virgili.
Journal publication year: 2014
licence for use: https://creativecommons.org/licenses/by/3.0/es/
First page: 27976
Last page: 27984
Journal volume: 22
Repositori URV