3 March 2011 Last advances in Yb3+ doped CaF2 ceramics synthesis
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One at% Yb:CaF2 transparent ceramics for high power lasers are obtained by vacuum sintering and hot pressing nanoparticles synthesized through a soft chemistry route. The residual optical losses of these ceramics are as low as 0.09 cm-1 (corresponding to an in-line transmittance of 96.7%) at 1200 nm. Densification during sintering is limited by large voids, but pressure assisted densification after sintering results in high optical quality transparent ceramics. Absorption spectra are similar to Yb:CaF2 single crystal, and the fluorescence lifetime was measured to be 2 ms in the wavelength 1010 to 1050 nm range. The 1 at% Yb:CaF2 transparent ceramics successfully produced laser oscillation at 1031 nm when placed in an Omega-type laser cavity under 970 nm diode laser pumping.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Michel Mortier, Michel Mortier, Andréas Lyberis, Andréas Lyberis, Akiko Saganuma, Akiko Saganuma, Adam Stevenson, Adam Stevenson, Daniel Vivien, Daniel Vivien, Patrick Gredin, Patrick Gredin, Gilles Patriarche, Gilles Patriarche, } "Last advances in Yb3+ doped CaF2 ceramics synthesis", Proc. SPIE 7912, Solid State Lasers XX: Technology and Devices, 79121R (3 March 2011); doi: 10.1117/12.879461; https://doi.org/10.1117/12.879461

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