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Highly efficient and high-power green coherent beam generation by intracavity frequency doubling of a diode-side-pumped Q-switched Nd:YAG laser has been demonstrated. In the simple L-shaped cavity geometry, the maximum green output power of 28.5W was obtained with pulse width of 95 ns at pulse repetition rate of 10 kHz using a LBO crystal as frequency doubling, corresponding to the conversion efficiency of 11 % from diode pump power to pulse green power. At a pulse repetition rate of 1 kHz, 6.9mJ of pulse energy, 25ns of with pulse duration and 276 kW of peak power were measured. |
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Keywords: green laser, SHG, Diode-Pumped |
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