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Efficient diode stack end-pumped slab lasers with a hybrid cavity were demonstrated. About 60 W of near-diffraction-limited output was obtained with Nd∶YVO4 slab crystals. The lower doped Nd∶YVO4 crystal shows the possibility of further power scaling with near-diffraction-limited output but it also increases the sensitivity of the wavelength to the temperature of the cooling water.
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Keywords:
- diode-end-pumped /
- slab laser /
- hybrid cavity
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