Efficient diode-pumped Er:KLu(WO.sub.4./sub.).sub.2./sub. laser at similar to 1.61 mu m

0492514 - FZÚ 2019 RIV US eng J - Journal Article
Serres, J.M. - Loiko, P. - Jambunathan, Venkatesan - Mateos, X. - Vitkin, V. - Lucianetti, Antonio - Mocek, Tomáš - Aguilo, M. - Díaz, F. - Griebner, U. - Petrov, V.
Efficient diode-pumped Er:KLu(WO₄)₂ laser at similar to 1.61 mu m.
Optics Letters. Roč. 43, č. 2 (2018), s. 218-221. ISSN 0146-9592. E-ISSN 1539-4794
R&D Projects: GA MŠMT LO1602; GA ČR GA16-12960S; GA MŠMT EF15_006/0000674
EU Projects: European Commission(XE) 739573 - HiLASE CoE
Grant - others:OP VVV - HiLASE-CoE(XE) CZ.02.1.01/0.0/0.0/15_006/0000674
Institutional support: RVO:68378271
Keywords : laser materials * lasers, solidstate * spectroscopy * infrared and far-infrared lasers
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 3.866, year: 2018

We report on an efficient diode-pumped continuous-wave erbium-doped monoclinic double tungstate laser. It is based on a 1 at.%Er3 :KLu WO4 2 (Er:KLuW) crystal cut along the Ng optical indicatrix axis. The Er:KLuW microchip laser, diode pumped at 0.98 μm, generates 268 mW at 1.610 μm with a slope efficiency of 30%. The output is linearly polarized (EjjNm), and the laser beam is nearly diffraction limited (M2p, m < 1.1). Spectroscopic properties of Er3 in KLuW are also presented. The stimulated-emission cross-section σSE is 0.46 × 10−20 cm2 at ∼1.609 μm for EjjNm. The microchip Er:KLuW laser outperforms the commercial Er,Yb:glass.
Permanent Link: http://hdl.handle.net/11104/0286020