Growth, spectroscopy, and laser characterization of Er:KGdxYbyY1-x-y(WO4)2 epitaxial layers

Optics Letters
Sergey V KurilchikN V Kuleshov

Abstract

We report on the composition of Er-doped KGdxYbyY1-x-y(WO4)2 layers to be grown onto undoped KY(WO4)2 substrate providing fine lattice matching and high refractive index contrast with the substrate and fabrication of high optical quality Er(1.3  at. %):KGd0.2Yb0.15Y0.65(WO4)2 epitaxial layers with thickness up to 180 μm. Absorption and luminescence properties of the layer were measured and laser action under direct in-band pumping was reported for the first time, to our knowledge, in a non-waveguide configuration. A maximum output power of 16 mW with slope efficiency of 64% was achieved at 1606 nm.

References

Jan 20, 2006·Optics Letters·Yaroslav E RomanyukUwe Griebner
Jan 12, 2008·Optics Letters·N V KuleshovG Huber
Nov 29, 2012·Optics Express·N Ter-GabrielyanM Dubinskii
Jun 6, 2013·Optics Express·D GeskusM Pollnau

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Citations

Nov 25, 2018·Optics Express·Esrom KifleXavier Mateos

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