0510573 - FZÚ 2020 RIV US eng J - Journal Article
Jambunathan, Venkatesan - Schmidt, A. - Mateos, X. - Pujol, M.C. - Griebner, U. - Petrov, V. - Zaldo, C. - Aguilo, M. - Díaz, E.
Crystal growth, optical spectroscopy, and continuous-wave laser operation of co-doped (Ho, Tm):KLu(WO₄)₂ monoclinic crystals.
Journal of the Optical Society of America. B. Roč. 31, č. 7 (2014), s. 1415-1421. ISSN 0740-3224. E-ISSN 1520-8540
R&D Projects: GA MŠMT ED2.1.00/01.0027; GA MŠMT EE2.3.20.0143
Grant - others:HILASE(XE) CZ.1.05/2.1.00/01.0027; OP VK 6(XE) CZ.1.07/2.3.00/20.0143
Institutional support: RVO:68378271
Keywords : crystal growth * optical spectroscopy * monoclinic crystals
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 1.970, year: 2014 ; AIS: 0.698, rok: 2014
Method of publishing: Limited access
Result website:
https://doi.org/10.1364/josab.31.001415DOI: https://doi.org/10.1364/JOSAB.31.001415

We report on the crystal growth, optical spectroscopy, and room-temperature continuous-wave laser generation around 2 μm with co-doped Ho, Tm∶KLu WO42 monoclinic crystals. Co-doped crystals at different doping levels were grown by the top-seeded solution growth slow-cooling method. We characterized the spectroscopy of Ho and Tm ions in KLuW in terms of polarized optical absorption, photoluminescence, and lifetime measurements. Continuous-wave laser operation at room-temperature at a wavelength of 2.06 μm was achieved with several crystals at different co-doping levels, establishing that the optimum doping ratio is 5.29 × 1019 at:∕cm3 for Ho and 3.10 × 1020 at:∕cm3 for Tm (0.5 at. %Ho, 5.0 at. %Tm:KLuW), reaching a maximum output power of 145 mW and a slope efficiency of 12.9%
Permanent Link: http://hdl.handle.net/11104/0301018