Influence of Y2O3 Content on Structural,Optical, Spectroscopic,and Laser Properties of Er3+, Yb3+ Co-Doped Phosphate Glasses |
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| Authors: | Karel Veselský ,Vilma Lahti,Laeticia Petit,Vá clav Prajzler,Jan Š ulc,Helena Jelí nková |
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| Affiliation: | 1.Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Břehová 7, 115 19 Prague, Czech Republic; (J.Š.); (H.J.);2.Photonics Laboratory, Tampere University, Korkeakoulunkatu 3, 33720 Tampere, Finland; (V.L.); (L.P.);3.Faculty of Electrical Engineering, Czech Technical University in Prague, Technická 2, 166 27 Prague, Czech Republic; |
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| Abstract: | The influence of the addition of Y2O3 on the structural, spectroscopic, and laser properties of newly prepared Er, Yb-doped strontium-sodium phosphate glass was investigated. While the addition of Y2O3 has a small influence on the absorption spectra and fluorescence lifetime, it has a strong impact on the emission cross-section and on OH− content. The glasses were used as the active medium for diode-pumped laser emitting at 1556 nm. The increase in Y2O3 content leads to a significant 35% increase in laser slope efficiency up to 10.4%, but at the expense of the substantial reduction of the wavelength tunability from 82 to 54 nm. |
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| Keywords: | erbium Er3+ ytterbium Yb3+ yttrium glass phosphate spectroscopy laser |
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