Optical spectroscopy and laser oscillation in a high-power laser material: Yb:GdVO4

Johan Petit; Pascal Loiseau; Philippe Goldner; Bruno Viana; Daniel Vivien; Bernard Ferrand

doi:10.1117/12.546501

1 September 2004 Optical spectroscopy and laser oscillation in a high-power laser material: Yb:GdVO4

Johan Petit, Pascal Loiseau, Philippe Goldner, Bruno Viana, Daniel Vivien, Bernard Ferrand

Proceedings Volume 5460, Solid State Lasers and Amplifiers; (2004) https://doi.org/10.1117/12.546501
Event: Photonics Europe, 2004, Strasbourg, France

Abstract

Yb:GdVO₄ laser crystals were elaborated by the Czochralski process. Thermal conductivity value was measured by photothermal analysis and reaches 8.1 and 7.1 W.m-1.K-1 along and perpendicular to the c-axis respectively. Optical spectroscopy is presented. cw laser oscillation is obtained for the first time in this material under titanium sapphire pumping at 984 nm. 420 mW were obtained for a 2% output coupler at 1029 nm. The laser wavelength can decrease to 1015 nm in thinner sample. In this case, the quantum defect is limited to 2.9 %. Thus, a new figure of merit taking into account the quantum defect is proposed. The small amount of heat release in the material gives good expectation for high power applications.

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Johan Petit, Pascal Loiseau, Philippe Goldner, Bruno Viana, Daniel Vivien, and Bernard Ferrand "Optical spectroscopy and laser oscillation in a high-power laser material: Yb:GdVO4", Proc. SPIE 5460, Solid State Lasers and Amplifiers, (1 September 2004); https://doi.org/10.1117/12.546501

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