Abstract
Generation of an up to 1.5-W single-frequency and a 650-mW frequency-stabilized second harmonic at 1.06 μm has been demonstrated in a cw ring Nd:YAG laser with a pair of properly oriented KTP crystals in which the walk off between the intracavity modes has been eliminated. The frequency stability is better than 5 MHz for the second-harmonic output level of 650 mW. The fluctuation of power is less than 4%.
© 1995 Optical Society of America
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