27 April 2016 Cryogenically-cooled Yb:YGAG ceramic picosecond oscillator
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In this work, a passively mode-locked Yb:YGAG (Yb:Y3Ga2Al3O12) ceramic laser generating picosecond pulses at liquid-nitrogen temperature is demonstrated. The Yb:YGAG has a similar structure to Yb:YAG, but its emission bandwidth at cryogenic temperature remains much broader, which is advantageous for ultrashort pulse generation and amplification. Using this laser material, a stable train of pulses at a wavelength of 1026 nm was obtained, with measured pulse duration of 2.4 ps, which is more than four times shorter than that achieved with a cryogenically-cooled Yb:YAG.
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J. Mužik, J. Mužik, M. Jelínek, M. Jelínek, T. Miura, T. Miura, M. Smrž, M. Smrž, A. Endo, A. Endo, T. Mocek, T. Mocek, V. Kubeček, V. Kubeček, "Cryogenically-cooled Yb:YGAG ceramic picosecond oscillator", Proc. SPIE 9893, Laser Sources and Applications III, 98930B (27 April 2016); doi: 10.1117/12.2227437; https://doi.org/10.1117/12.2227437


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