Spectroscopic properties of newly flux grown RE2O3:Yb3+ (RE=Y,Lu) laser crystals for high-power diode-pumped systems

Gabriel Buse; M. Velázquez; Philippe Veber; Véronique Jubera; Yannick Petit; Stanislav Péchev; Oudomsack Viraphong; Rodolphe Decourt; Anaël Jaffres; Patrick Aschehoug; Gérard Aka

doi:10.1117/12.921785

8 May 2012 Spectroscopic properties of newly flux grown RE₂O₃:Yb³⁺ (RE=Y,Lu) laser crystals for high-power diode-pumped systems

Gabriel Buse, M. Velázquez, Philippe Veber, Véronique Jubera, Yannick Petit, Stanislav Péchev, Oudomsack Viraphong, Rodolphe Decourt, Anaël Jaffres, Patrick Aschehoug, Gérard Aka

Author Affiliations +

Proceedings Volume 8433, Laser Sources and Applications; 84331B (2012) https://doi.org/10.1117/12.921785
Event: SPIE Photonics Europe, 2012, Brussels, Belgium

Abstract

Developing large laser grade cubic rare-earth sesquioxides (RE₂O₃, RE=Y,Sc,Lu) single crystals doped with Yb³⁺ ions stands as one of the most challenging endeavours of today's crystal growth^1,2. Recent studies on cubic RE₂O₃ single crystals have demonstrated their laser potential and highlighted the extreme thermodynamic conditions in which their growth takes place^1-3. In particular, the laser performances of Lu₂O₃:Yb³⁺ crystals make them likely to outperform betterknown rivals such as YAG:Yb³⁺ or KY(WO₄)₂:Yb³⁺ for 976 nm diode-pumped systems⁴. Several mm³-sized Yb³⁺-doped Y₂O₃, Gd₂O₃ and Lu₂O₃ single crystals were recently grown by a newly designed high-temperature solution growth method⁵, and characterized by means of X-ray diffraction, Fourier transformed infrared (FTIR) spectroscopy and electron probe microanalysis (EPMA). Spectroscopic characterizations (absorption and emission cross sections, visible anti-Stokes emission, fluorescence decays) of these new cubic RE₂O₃:Yb³⁺ (RE=Y,Lu) single crystals are presented.

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Gabriel Buse, M. Velázquez, Philippe Veber, Véronique Jubera, Yannick Petit, Stanislav Péchev, Oudomsack Viraphong, Rodolphe Decourt, Anaël Jaffres, Patrick Aschehoug, and Gérard Aka "Spectroscopic properties of newly flux grown RE₂O₃:Yb³⁺ (RE=Y,Lu) laser crystals for high-power diode-pumped systems", Proc. SPIE 8433, Laser Sources and Applications, 84331B (8 May 2012); https://doi.org/10.1117/12.921785

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