Abstract
The features of laser radiation amplification in Yb:Y2O3 ceramic disk active elements have been studied. The first multipass disk pulse-periodic amplifier with a cryogenically cooled Yb:Y2O3 ceramic active element has been created. Its average output power is 15.8 W at a pulse repetition rate of 11.5 kHz, pulse duration 0.5 ns, and spectral width 1.2 nm. The results obtained demonstrate the potential of broadband radiation amplification with subsequent compression to the subpicosecond range of pulse durations.
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