Efficient Yb3+:Y3Al5O12 ceramic microchip lasers

Low-threshold and highly efficient continuous-wave (cw) Yb3+:Y3Al5O12 (Yb:YAG) ceramic laser with near-diffraction-limited beam quality was demonstrated at room temperature. Dual-wavelength operation at 1030 and 1049nm with 5% transmission of the output coupler was achieved by varying pump power int...

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Veröffentlicht in:Applied physics letters 2006-08, Vol.89 (9)
Hauptverfasser: Dong, Jun, Shirakawa, Akira, Ueda, Ken-ichi, Yagi, Hideki, Yanagitani, Takagimi, Kaminskii, Alexander A.
Format: Artikel
Sprache:eng
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Zusammenfassung:Low-threshold and highly efficient continuous-wave (cw) Yb3+:Y3Al5O12 (Yb:YAG) ceramic laser with near-diffraction-limited beam quality was demonstrated at room temperature. Dual-wavelength operation at 1030 and 1049nm with 5% transmission of the output coupler was achieved by varying pump power intensity. Slope efficiencies of 79% at 1030nm and 67% at 1049nm were achieved for 1-mm-thick Yb:YAG ceramic plate (CYb=9.8at.%) under cw laser-diode pumping. The effect of pump power on the laser emission spectra of both wavelengths is addressed. Excellent laser performance indicates that Yb:YAG ceramic laser materials could be potentially used in high-power solid-state lasers.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2345229