O. Antipov, A. Kuzhelev, D. Chausov, A. Zinoviev, A. Fedin, A. Gavrilov, S. Smetanin
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100-W-average-power Nd:YAG laser with adaptive cavity formed by self-induced population gratings
We report the experimental and numerical investigation of a self-starting Nd:YAG laser oscillator with cavity completed by population gratings which are induced in the laser crystal by generating beams themselves. The spatio-temporal characteristics of the laser including three Nd:YAG amplifiers and the saturable absorber (LiF:F2- or Cr4+:YAG) have been investigated. The laser oscillator with a nonlinear mirror has displayed self-adaptivity to strong thermally induced intracavity distortions. The generation of single mode beams with an average power of as large as 100 W and near-diffraction limited quality has been achieved.
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